Yeah, I have to agree with OP. Bluntly put, I don't know who was QA'ing this on PC, but they did a poor job of it. And I don't know why anyone would claim DAI was "optimized for PC" when it was clearly not. Not when the UI is 40% of my screen and covering the beautiful visuals we're so excited to see (which all lag and stutter anyway, even though it was promised that if you could play DA2, you could play DAI).
It's 2014. Consoles and PCs are both widely used. Optimizing for both is a sound decision, and should definitely be done. But they're vastly different and should be treated as such. That I can't map things to my extra 2-3 mouse buttons (like autorun, at least), or at least scale my (rather boxy and somewhat unappealing, tbh) UI so I can see the beautiful art of the game and the faces of characters.... It's a little disappointing.
Not to mention the showstopper bugs that half the people are getting, preventing them from progressing by dropping them in the middle of nowhere, or breaking their Inquisitor when they encounter a certain character later. How did those get past QA? Because they're not exactly rare.
The game is good. I love the environments, the characters, all of it. But the AI is worthless when they won't deaggro to things far away, charge off with no ability to set them to how aggressive or defensive they are, no option to keep ranged at a distance... No auto-attack, no auto-approach. Why is left click attacking by default? Right has always been attack/interact, left has been select. And half the time I have to click three or four times to get things to respond. The companions flail around trying to position themselves without hitting something, and wind up having to constantly reposition themselves. They're in my way 90% of the time.
I will sing the praises of the writing and visuals of this game (shiny hair syndrome and general bad hair aside), but the mechanics for PC are wanting. And the visual bugs... mean the minimum reqs aren't actually feasible for playing. And it's clear that most reviewers played it on a console because this was absolutely unheard of until the game itself released to the public.
I know most of these issues are already on the table to be addressed, but I wanted to add my voice. This was a game I wanted to show my friends, to encourage them to play, and when they finally did, it was nearly unplayable for some of them. I want this game to do well. The writing deserves it. Hell, the character creator alone deserves it. I would absolutely have waited another week or two for an optimized version, and I do hope the initial patch is released soon.