They added reactions, which I am happy about, and which made this feature of the mod possible. There is a pretty good chance that they will add most of this into the base game, but if they don't, it works just fine in the mods, so I'm not going to fret one way or the other.
I would add:
They .....<<<<grudgingly> added reactions after 2 YEARS of EA and feedback/complaints>>> Thats exactly how this situation feels.
Reactions is just not a Larian thing to do. But we got it.
I am now looking forward more to BG3 mods than the actual Larian updates and game. This is weird.