I honestly can not think that Larians pride in their product would allow them to leave the main story and in particular act 3 as is. Act 3 is almost laughably bad in relation to QA, quest progression triggers and inconsistencies (+ bugs).
I do not know if this is hyperbole or you have not played many games but on the grand scale Act 3 is in the fair range, not even bad. For me the issue is the story line in Act 3 comes off as rushed, push to and ending to just get an ending. This combined with a Tadpole system that feels forced and there are my major complaints.
My initial reaction was that it is not so bad. However I have come to realize we are all being extremely lenient on it because the veil got pulled over our eyes with act 1-2, but the more I think about it the worse it gets.
There are bugs everywhere, story inconsistencies everywhere, faulty plot progression triggers, lines repeated all over the place. For example:
-Gale randomly states that he wants to take the crown and reforge it in a conversation with an NPC, as if it was something that was already discussed within the group. 3 hours later at camp he exaplins his reason for wanting to know more about the crown as if he already hadn't stated it out loud. And stuff like this HAPPENS ALL THE TIME.
- Tanner the Gordian states he wants to blow up the factory after his daugther dies, he tells me to come back for him after the path is cleared. I come back after doing exactly that, and he states randomly" I warned you this is your fault my daughter is dead because of you" and attacks me.
- The Emperor shows you the vision that confirms he was manipulating everyone then still acts all. "why don't you trust me"?
- When Karlach runs away and says she has to think, when you find her the same conversation will run twice
- Every time I dismiss Minsc I have to tell him twice.
There are way more, so many I can't even remember them all. And yes, I don't play that many games anymore. Mainly because I have high standards and prefer not wasting my time because I also like to do other stuff(in addition to you know , life). So generally, the games I play are FINISHED. Act 3 is far from finished and QA'ed. Which is why I rate it so low.
Add in the choose X squid ending or Gale nuke after all the talk about choice I cannot help but think ,if we got dropped off in act 3 without playing act 1 and 2 we would all rate it 4/10. I mean it. DA:O was never like this at the ending. The Witcher 3 was never like this at the ending.
Even old games like Planescape and NWN2 have NOTHING this bad (when it comes to bugs, faulty plot triggers).
