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It has far less to do with Origin vs Steam, and much more to do with long-term dumbing down every unique feeling game into "that EA casual audience" feel... DAI isn't the worst game in the world and some people actually like that MMO-ARPG-lite genre it's become, but if you're playing as a mage try not to play it back to back to any pre-EA acquisition Bioware RPG.
You are leaving out that Bioware (aka Muzyka and Zeschuk) still had complete control of their creative decisions.
That is just the way the industry was moving, can't say I fault EA for that.
I don't disagree with the dumbing down of lots of things, but that was made to expand the game to be more "friendly". Again, this is a industry trend, they want more people playing their stuff, not just die-hards. (No, not saying I agree with how they are thinking, but, it is what it is).
I think Planescape: Torment was one of their best games, and it barely made any profit, and you can't run studios with no profit.
It took 'self-financing' (kickstarter or whatever) to get back to the core (die-hards) community with titles like Pillars of Eternity and Torment: Tides of Numenera.
I don't think any big publisher would touch those games, just not enough people would buy it.
Pillars of Eternity sold ~500K games, Dragon Age: Inquisition "quickly became the most successful launch in BioWare history." with estimates of over 3 million sold (they never released actual #'s).
Yeah, if you owned a company, and had lots of people depending on your decisions, then you would play it safe as well, and go for the broadest appeal for your game as possible.
Anyway, I don't see this trend changing anytime soon, and it is sad for people that want solid games, not the new dumb-downed versions that they are dishing out.