Yep the AI Seen some improvements, some steps forward and some backwards. But this AI system is really far from being perfectl. I think it's far from even being adequate.
Of course while we are still in EA it is acceptable and I assume it will keep improving. But yes a lot of work to be done.
Some aspect of gameplay that improved with patch 5 but still not enough - the enemies plotting their next move issue. It used to be everywhere throughout the game - enemies spend the first 20-40 seconds of their turn just standing around and doing nothing, which in my opinion is still the biggest problem with the gameplay. It hurts the pacing of combat like nothing else.
As mentioned, this problem is rarer now, but unfortunately, it is very prevalent where it is most noticeable - the goblin grove fight. Since this place has so many enemies, this is the worst possible place for the problem to trigger and it made that fight an unbearable slog.
When talking about enemies AI this problem should be the number one goal.