Firstly humans make mistakes.
Most importantly obsidian do bring out games need bug fixing same as any other company. Even microsoft have bugs in there operating system win on every release.
Think about it multiple operating system and game systems to build for. 1 person has i5 with gtx 960 and someone else i7 with gtx 1080 not including memory used and amount, motherboards etc no way test every type of configuration and make item perfectly bug free.
Gmaes have to be released to gain money. Without money company go under.
POE 1 is great to play after it got sorted, my only issue with it is white marsh needs be played mid game to unlock soulbound stuff and that makes end game to easy as it kills level progression, mind you end of games in rpg's are normally easy anyway as party often op by then. Completed it 3 times so had my moneys worth out that game love the game.
POE 2 played it had only couple minor bugs, nothing game breaking. Yes combat needs fixing and balancing and needs bug fixes. I not played to much game as will save it till lot issues sorted, not issue to me.
As for add on I like DLCs as long not like most where cash grab. 3 dlcs for $20 dollars is good price. I know there not going be size of white marsh as think most wanted smaller dlcs, that been said hope maybe will get one white marsh size dlc but thats my want like and I be happy with what we get as long as its enjoyable and adds well to game.
My issues with game and this my own point view. For me liked combat way it was in POE 1 but I am minority. Personally I like see option at beginning of game lets you choose combat similar to POE 1 or as is currently in POE 2. Second issue is miss having dungeon crawls, I would of enjoyed having endless path style dungeon but with less filler combat more thought out. Would be nice have few other dungeon crawls to balance out game bit. By dungeon don't mean underground only, could do dungeon that's tower or massive woods etc.
So as can see I am not champion of obsidian most not but that been said I think they do wonderful job and are one better game companies. I don't agree with everything they do.
Sometimes obsidian not responsible for issues they had complaints about good example KOTOR 2 which obsidian wanted bring out late but not allowed and wanted bug fix add content after release but were stopped so can't blame obsidian for everything.
Tyranny had its issues still not like short end part but game had its bug fixes got some add on content, now is great game and I completed it many times and hope in future for tyranny 2
I imagine they be few things in POE 2 even after finished fully I wish were different but I am me and am not more important then anyone else. I know it be great game I play it many times and will enjoy. I sure it will have things I dislike and wish were different but nothing ever perfect. I do hope there will be POE 3 and hope it will be best of POE 1 and POE 2 with new ideas to.
I really don't get why some are so negative towards obsidian and make such issues out of the few bugs and problems. Obsidian replied both bugs I found and were very polite and professional. I glad see they work with community and take feed back and listen which lot companies not doing. I like they don't want microtransaction money grabbing things lot are doing.