As is everything here. The instant I become a god and have everything I say become definite fact, I'll give myself a cool flaming font so you can tell the difference.
Quite so. Problematically so, given her status as the only lesbian.
Then don't take the dialogue options that go that way if we do have a DLC on the subject, and everyone can be happy.
True, and there can only be one Merrill. But my problem is with the fact that they made the one lesbian companion a blatant controversy magnet who could be ejected from the party at any time. Had she not had that role, or had she not been the only lesbian, I wouldn't care.
Then I can only hope that the rage of me and mine shines brighter.
Honestly, the way you've been complaining, gives off this impression of "self-entitlement".
Everyone has their own opinion and is welcome to it.. but most of us don't beat a dead horse, day after day..
Yes, she's the only lesbian. You can also romance Josephine, who is bisexual. My point is, if you're not happy about your romance options, the solution is simple -- stay single. It really isn't that important, DA is a fantasy RPG franchise, not a dating simulator. The romance is side-content, to add a little fun and spice to the mix. Not everybody is gonna be happy about their options.
Hell, in Origins I wanted to romance Morrigan as a female because I wasn't too happy about Leliana's religious beliefs. After giving her a chance, however, it wasn't so bad and could be sweet at times. I got over it. I did not feel this obsessive need to go on forums and complain about it for the rest of my life.
Though i gotta say, that shouldn't be an excuce for them to not add some good Sera content in future dlcs. I want Sera. I want moar of her. She's too good of a character, a freshy one, to not be given proper attention bc some people hate her. A lot of people love her as well. Shouldn't BW favor them too? 
I'd be all for more Sera, believe me. One can never have too much of her. 
I'm just being realistic though; I don't see it happening. Solas is the most likely companion to get extra content, due to his character tie-in with the plot.