Oh, this! Very much in agreement, it's something that bothers me. I think the closest I've seen is being able to show some kind of negative emotion...like worry, anxiety, discouragement to Wynne about being a GW etc. My canon is a Cousland and I really feel like it would have been nice to have had a heart to heart with someone about the fact that my family and everyone I'd known my entire life had just been brutally slaughtered, I kinda wish they hadn't put Fergus out of the game until the end, I needed my big bro! I actually felt traumatised myself the first time I played through a Cousland origin. That's how I felt anyway...I needed a hug from SOMEONE at the very least!
This! Alistair, throws a nice hissy fit if you so much as think of slighting Duncan in the slightly, or brush off his own views or concerns. While dismissing the the death of your whole family with basically,"Oh yeah, right, sorry to hear." then goes back into his angst at losing Duncan. For that and a few other reason none of my female nobles would ever romance him ICly (Did it for a completionist play-through under duress XD). Other origin backgrounds yes but never with the noble.
To me there was to much hand-waiving dismissals at any traumatizing event that the PC had (with any origin for that matter), and it struck me as quite odd that your LIs had no concerns over that especially since it would be something that would always be the foremost on the PC nobles thoughts.
I understand that the writers are limited in what they can do. Due to the fact that also have to tell more than one story several different ways due to players choices (Also race/class and other permutations from prior choices). With any omg moment that will have an impact on the player the NPCs should show a little more than a passing concern or just one passing comment. It's a fine balancing act that the writers have to contend with and I don't envy their task; but only suggest if they bring up something that would be a very pressing and important matter to the PC. Is that they try and give that plot line its due. Yes all the origin stories received their closure, from Howe, to Bhelen, Tamelen with the camp scene (must admit that was a bloody good scene), and the rest of the origin stories key points that started the warden down their path, whether it be for revenge honor, glory, or what not.
Hmmm seems like I am rambling, tl;dr : If it is something that would be of importance to the PC, the LI should have more than a passing concern no?
With that stated all I can ask and hope for is this: For any potential LI let the characters be themselves, no pandering to meet demographics. Like the approach ME3 took which I consider one of that games highlights. Male Shepard that peruses Traynor, shot down! She has her own interests and likes and Sheploo isnt one of them, same for Ashley, no matter how much Femshep wanted her, Ash likes the boys(Though it would have been fun to try and flirt with her to see her reactions though). Eh, what I am getting at, write the character as you see fit, if they're bi, then they are bi. Just not something that is put in to meet a quota it seems forced.
I'll use Anders as an example, from awakening, he was a "lady's man", Then we get to DA2 he's still the shameless flirt (I applaud Mr Gaider for giving a NPC with some initiative, with npcs that they tell you what they want, and like) and now he's bi. Now I do not know what happened between awakenings and Kirkwall but without context this seems so out of character it just smacks me as wrong.
Eh I better stoop rambling now....Oooo Squirrel!