I like Solasta but I gotta admit the popups did get annoying in some places. Having to hit no to smiting every time I landed an attack as a Paladin was bad but bearable, but when I played a Sorcerer and got a popup every time asking me if I wanted to metamagic anytime I tried casting a spell drove me crazy. Though this could be mitigated with a shortcut that lets you say no immediately.
I agree, though none of the things you mentioned are reactions. I think that streamling attacks can be beneficial even if player looses a bit of the granual control - like potentially with smite. But reactions proper, actions that are meant to be taken as a response to what enemy is doing, required different treatment IMO. Automating them doesn't as much as remove granual control, as makes them too unpredictable to be worth the resources they consume.
