@T2aV
It's because they don't do end to end regression testing. The regression testing performed by Larian QAs is limited to adjacent code impacts only. (Meaning that they won't go check on something all the way in Act 3 if they make a change in Act 1) or to the menu interface or the magic mirror etc. I'd contend regression tests for a game of this density and scope would be incredibly difficult to accomplish, which is why changes should be rolled out very very slowly. I think the community would prefer the absence of QOL features if it meant the game and quests functioned properly, for example.