They have the same body type for everyone, and extra body type takes up resources. If they have a rounder female protagonist then the rest of the NPCs would be like that as well. That was the reason why female dwarves didn't make an appearance in DA2 because it takes up too much resources. If people complain about females being like supermodel then they should bring up males being supermodel type as well. They are both idealized versions of ourselves. Since the games have a lot of interaction, clipping and positioning would also very hard with varying body types, and I would rather the body type by of idealized version of myself, male or female, if I want to at an regular Joe's body, I look in the mirror or stare at the street. I do wish the Qunari's female would have been bigger though and more muscular considering how exaggerated qunari male's physiques are.
I agree. They give all races/genders one build each. This makes it easier to work the character frames in cut scenes. So they give them all a moderate frame for their given race/gender. Because if they didn't every NPC would have the exact same build.
Games like Kingdoms of Amalur gave everyone the same build too, but the men were all hulking muscle men. And that looked silly when every shopkeeper, farmer, spoiled rich noble looked like they were living on a diet of creatine and spent 8 hours a day in the gym. Meanwhile, all the women huge boobs and super physiques. It was kind of distracting when you were talking to someone who was supposed to be a sweet, little old lady or something.
So I'd like more options of builds on characters, but if they had to pick one, going with a moderate build for all human characters was probably the best call.