Reactions are an important part of 5E's action economy. Not implementing them has had increasing knock on effects as more and more content has been implemented. Like or not Solasta proved implementing them as interruptions to enemy turns doesn't really slow down the pace of combat too much. And some of the consequence of not having reactions make no sense at all (like removing Disonant Whispers' forced movement). Or being a major nerf to wizard survivability by removing shield. There absolutely is room for automation to streamline out some potential clunk, but those are more of the exceptions than the norm, for the most part it's over-aggressive streamlining.
The funny thing is that even the Other Game did this:
"On top of that Cutting Words has been buffed in <Game_Name>: the targeted enemy decreases all its ability checks, attack and damage rolls by the value of the Bardic Inspiration die until the start of the Bard's next turn. This was done to avoid having pop-ups interrupting the game every time the enemy did something during their turn."
This is pretty much BG3's existing implementation and remains a fairly hefty nerf. The problem is that you have to pre-spend both resources (reaction and inspiration) to target a specific enemy and there's a high chance that no role that enemy makes will have a degree of success that would even make it possible to turn a success into a failure. Though it's no where near as pathological as BG3's implementation of Bardic Inspiration on that front in that at least it's multiple roles and the way bounded accuracy works hits with a degree of success of 1 to n are going to be more common than misses with a degree of failure of 1 to n. Fundamentally it's that it targets an enemy rather than being all enemies. Personally I suspect that thinning it down to only applying to roles it could change would cut the frequency of the reaction enough, that's essentially the One D&D's fix in the current play test. If not then automating it being a stance and applying to the first applicable role, even just giving the option to skip each ability check as they are fairly rare. Or even just refunding the inspiration if there is no viable role would make it a less savage nerf.
