The point Tuco is mostly that if a specific spell, class feature or any other reaction stuff was written differently in the PHB, most of you wouldn't care because it would just be the rules.
I guess most players but "some" DnD and eventually "Solasta" fans would be fine with not having a faithfull translation of the TT reaction system in BG3.

Especially if it makes combats more dynamic and ennemies turns more appealing to watch.