I'm fine with what Larian has done except that disengage still doesn't work well. Tried to disengage, hit the button, picked my location, game made my character move first, got Critically Hit, and lost most of my HP because my character didn't properly disengage.
So Reactions in BG3 for me only stink cause they either don't work well with Disengage or because I think I can move past an enemy only two provoke an attack somehow by accident. Vwe need something more substantial than a red arrow you can barely see on the ground at character's feet.
I've also noticed characters don't always trigger reactions when they should. I put Lae'zel right next to an enemy. They didn't disengage but she didn't hit them with her axe.