DA2 didn't feel like minority groups were an afterthought.
People might've complained about the system (like that guy who wrote the stupid "Straight Male Gamer" article), but I think when all is said and done, people are going to look back on DA2 fondly. It was inclusive, and gave the players room for more imagination. You didn't even give a second thought about creating a character and worrying if/how/when they were going to be gated. It was just something to be enjoyed your own way.
Dragon Age 2 is not actually representative of the majority of video games out there. Most of them are still targeted at straight men. To be honest, speaking as a bi person, I loved that everyone was bi in DA2, but one game in a sea of heteronormativity won't make much of a difference. Developers have to be consistent and active in their efforts for representation, or it means little on a grander scale.
And though I've never played Mass Effect myself, from what I've read about it, it still looks like, at least at first, straight men were the primary demographic.
This isn't to say that BioWare isn't fantastic when it comes to representation compared to pretty much everyone else, but it's a refreshing change for a reason.