Originally Posted by _Vic_
Well, if you turn them off it is the same as if you do not have them

This is false. For example I could turn it off for 5 out of 6 characters if I preferred to have the combat run more smoothly.

Secondly, if you were a creative and constructive person, you could even suggest the reactions are part of the NPC's Battle a.i.

Originally Posted by _Vic_
Oh, I can think creatively many ways to do it, but I am afraid the developers do not have that luxury

If Larian does not allow its developers to be creative and constructive, then perhaps it's a studio that does not deserve the Baldur's Gate 3 license.