DA I did. All the main quests where you die you get a different ending. So there is...what eight right there. Plus the staggering number of different slides based on your actions...etc...etc...
What do you mean by the "All the main quests where you die you get a different ending" line? Like if you fail a mission, the loading screen that describes your death changes? If so, I think that's a fun element, but since none of that is potentially canon (as far as I know) it seems like none of those are 'real' endings, in the sense that future DA titles can build off of them. It's like with the Darkspawn Chronicles, how that's technically what would happen if your warden didn't make it, but since we can't actually do anything with that ending other than see it, it's kind of a dead end. If that's not what you meant at all, my apologies 
I wouldn't call the amount of ending slides for Inquisition staggering. There were a decent amount, sure, more than Mass Effect 3, for example, but it really didn't compare well (in my eyes) to Origins. Usually I'm careful not to rely on DAO as some sort of pinnacle (because like everything, it had its issues) but for a large variety of endings, I think DAO really had it done well. For DAI, I would have liked to have seen more endings based on my character and the people around them. I suppose if they're planning on utilizing our companions to some degree in future games, it wouldn't be prudent to describe their endings now, but I personally cared more about what my advisors and companions were going to do, rather than hearing Morrigan restate something I already knew about some things I already did.
I suppose I feel that Bioware should be careful about how they describe their endings. To me, 'multiple endings' brings to mind what DAO did. That's not to say that I dislike games that are a little more linear in how it all goes down (I really liked how DA2 ended with a bang, even if some things didn't totally make sense), but I wouldn't describe DA2 as having 'multiple endings' just multiple ways to get to a similar place. To me, that's more in line with how Inquisition ended. Multiple ways to get to the same place.