To be fair to Larian, it's not particularly easy to find a way to allow correct and timely player reaction choices, while still allowing their high production value depiction of the game.
For example, the fighter ability to block/protect a nearby party member as a reaction *should* be queried at the point where the party member is hit, by which time, you can't replace the "being hit" animation with the "hit blocked" animation ( I believe Solasta doesn't bother with a block animation, as it is implicit in the pop-up query ).
An alternative that gets the correct animation playing is to offer the block reaction before the animation starts; but if you ask "your companion is about to be hit, do you want to block?" before the enemy turn plays out, you telegraph what is about to happen, losing any sense of anticipation.
From a personal viewpoint, I would be happy with a "reaction bar" that allows you to (in some way) interrupt the enemy turn to select/accept a reaction, but that's because I prefer RT, and would want something to focus on when it's not "my" turn. But I can also perfectly understand why someone with a TB preference, who prefers full control without any time pressure would not like this.
I find it less easy to understand why someone with a TB preference, who prefers full control, would find the current mechanism acceptable, since it turns player control of their *single* reaction into a lottery.
I'm not sure that putting such emphasis on "look" at the expense of "correctness" is the right way to go.
