You do realize politics kills all Cousland but two.
Yeah, once. After a thousand years of literally everyone else in the world kissing the ground they walked on and never once trying to take any of their lands, titles, or resources.
Howe is literally the first and only person in the history of Ferelden (which spans over a thousand years) to ever try to encroach on the Cousland's "rightful" lands, titles and property, even though the nature of Ferelden politics (described here and here) makes it clear that nobles squabble and land-grab and try to one-up each other all the time. In a thousand years no one ever once got jealous of or wanted to take anything from the Couslands until Howe, who also happens to be an irredeemably evil monster in man's skin who's universally reviled by everyone else.
People are just hating on the Couslands because they work hard and reap the benefits.
Everyone else in this universe works hard too, yet they reap weeds as well as benefits, whereas the Couslands reap nothing but benefits.
For example, the Ferelden Grey Wardens also sided against the tyrannical King Arland two hundred years ago, yet they alone bore the brunt of taking the losing side (losing their reputation and status, getting labeled and banished as traitors, and still bearing the stigma to this day), whereas the Couslands didn't lose any of their reputation or status despite also being on the losing side of that war. If the Wardens lost face for siding against Arland, the Couslands should have too. But because they're author's darlings, they don't have to deal with any of that. They get all the in-universe praise of "Oh, what heroes! They sided against a tyrant!" but none of the in-universe shame or scorn that comes with siding against a monarch. (Essentially, "They sided against the king? What traitors!")
Eleanor was sinking Orlais war vessels with her own ship when she was 15.
Yeah, with Daddy's money and resources. Her father had been a sort of privateer, right? A bann who also did some raiding on the side? That means he bought and paid for all her training, weapons, ships, and crew. She's a textbook example of "Never a Self-Made Woman"; everywhere she got in life was from the assistance of a prominent male relative who both inspired and paved the way for her. She had all the advantages of her father's wealth and status and resources going for her.
Now, if she's been a nobody commoner who started off with little but amassed a ship and inspired the loyalty of a crew of strangers and then made a reputation for herself as a seafaring threat like, say, Isabela, I could respect her a lot more.
Meanwhile, Adaia was a nobody commoner city elf who actually had society working against her since elves are legally forbidden from owning weapons, and elves get constantly get arrested, tortured and purged for even raising a hand against humans. Yet, with nothing but a single ancestral dagger and her own gumption, somehow managed to become a great enough fighter that Duncan really wanted to make her a Grey Warden, and only relented because there was no Blight at the time.
Adaia might have been murdered in the past, but then Eleanor was murdered in the present. So much for that.
It is a good "Mary Sue" for me, it is because they are representing the good side nobles, we have irredemeable bad one that is Howe. The hatred on Howe will be less meaningful if the Cousland is no better than Howe isn't it?
And we also have not so good nobles of other race, the Dwarves. So Cousland being the only "Mary Sue" is fine by me, it will be boring if Cousland is no better than any power grabing, double crossing, and scheming nobles already existing in the game.
Let Cousland be Cousland as they are, don't change them into the same level as any nobles in DA universe, let them be "Mary Sue", let them be the example of "there are still better uncorrupted nobles in the world not like any other"
Or the writers could have instead realistically balanced the virtues and flaws of all noble families so that other not-so-nice nobles can have redeeming qualities and the Couslands have some negative qualities, instead of the current set-up where everyone is flawed and everyone does mean things except the Couslands.
Or, if they have to have the Couslands be perfect Mary Sues (because every author has a darling), they could have balanced this by having other "perfect" characters besides the Couslands, rather than the Couslands being the only ones who are both flawless and universally adored by all their peers.
But no. They alone are always nice and always virtuous and always above those little petty things that literally every other noble does. Literally every other noble in the setting plays at politics and power-grabbing and racism and classism to at least some extent... In fact, they have to. The Dwarf Noble Origin reveals that dwarven nobles have to play at cut-throat politics because if they don't, they'll get killed. The Amaranthine trials in Awakening reveals that Ferelden nobles constantly engage in petty squabbling and constantly try to take land and status from each other; but never the Couslands?
I'm sorry, but that's not believable for this setting. Why is it that all noble families from all times and places occasionally get jealous of and try to one-up each other, but never the Couslands? Why is it that every other noble family has to occasionally deal with other noble families trying to take from them or screw them over--but somehow, magically, no noble in the history of Ferelden before Howe ever once got jealous of nor wanted to take something from the Couslands, therefor the Couslands never had to deal with any political rivals, therefor they never had to engage in politics, therefore their track record is completely spotless?
No. Realistically speaking, some members of the Cousland family should be flawed and/or corrupt (throughout Ferelden history and present day). Some people besides Howe (and not irredeemably evil assholes like Howe) shouldn't want to kiss the ground they walk on just for being Couslands. And some people should have at least some legitimate grievances against them. (Not "OMG WHAT ASSHOLES!" grievances, but just general distaste or apathy. "Bryce? Yeah... he's kinda self-righteous, don't you think?" or "Yeah... my great-grandfather got into a long border dispute with your great-grandfather, which the courts finally settled in your father's favor, so my father's really a fan of the Couslands.")
The Cousland's status of being the only nobles who never have to deal with politics depends on other characters (besides Howe) constantly treating them deferentially (despite never doing the same for each other), which isn't believable.
The writers should have either made the Couslands more flawed like everyone else, or had other "perfect" nobles elsewhere to balance out the Couslands' perfection, so the Couslands aren't the only perfectly perfect flawless paragons of perfection in a world filled with realistically flawed people.
No - Couslands in themselves could've been wiped out. And yet you choose to think their Mary Sues when they could have a bad members of the their family - who was blocked from the history books - keep in mind the Cousland's are an old family, you may never know just becuase they never dicuss it...
Coud've, should've, would've.
Didn't. Weren't.
And the fact that they are universally praised and admired by everyone all the time in the setting (except for Howe, who is not only the only one who doesn't worship them, but only does so because he's irredeemably evil and has no legitimate claims against them; he's just jealous of how amazingly fabulous they all are), and people only ever have good things to say about them, despite them being around for a thousand years and those characters always having something bad to say about others, makes me call bull.
Take the Theirins. They're also an old family. They've been Ferelden's royal family for over a thousand years, since the country's inception. Yet, they're shown to have a realistic balance of virtues and flaws. Some Theirins have been better than others; some were just, some were tyrants. But even the best of them have been shown to have at least some realistic flaws and weaknesses to balance out their virtues, making them realistic, believable, complex, dynamic characters. Even characters who love the Theirin family could point to a flaw if you asked them. "Arland? Yeah, he was a tyrant." "Cailan? Yeah, kind of a spoiled, sheltered idiot, isn't he?" "Alistair? Yeah, kind of an inexperienced idiot who always tells bad jokes, doesn't he?"
Couslands? Nope. Not a bit. Despite also being an old family and also being around since the country's inception a thousand years ago (and not even as high as the royal family), somehow there's never been anyone who was significantly flawed or poorly regarded in the slightest.
That's where I call both "Mary Sue" and bull.