This gets repeated sooo much here, but it’s just some sort of deflection. Nobody expects a bug free release and minor bugs aren’t even the problem. The problem is that the quality of the game went down drastically with DF. We’ve always had bugs, but DF wins the crown. Aside from the ruined release night there was so much unfinished stuff and many bugs, a lot of them major bugs… several of them led to heavy exploits. I made a list once and compared it to the small few and mostly unnoticable problems SL had at release for example.
DF’s beta was also too short… heck, Priests literally got told “We don’t have time to finish your class, we’ll do it later”.
And the trend continued with DF’s patch and event content, where almost every release wasn’t properly developed and saw small reworks or it was completely bugged for days, like 10.1.
Several campaign quests have been bugged according to Beta forums, so I wouldn’t be surprised if one those errors manages to find its way to live. Plus the ongoing problems with Delves, they will 100% be buggy one way or another at release. Not to mention that Priests will have a hard time completing these on higher levels, because Disc/Holy have no interrupt and the one from Shadow has a way too long CD and there are mobs that must be interrupted. This issue has been ignored the whole beta.