You are mistaken. a vocal minority is not a vast majority. Solasta didn't even implement any reaction-heavy class, because it's reaction system is so bad having a bard will turn the combat into pop-up hell. People praising Solasta's reaction system are a very niche group of obsessed 5e rules fans who derive some perverted masochistic pleasure from enacting a clunky and unbalanced DnD 5e ruleset in a videogame. DnD works in a real-life table-top environment because it only serves as a foundation for DM's story-telling, not some Holy Scripture of Irrefutable Dogmas.
Oh, so we've rounded right back into purist strawmen. Neat.
...Do people not even know that Solasta is adding in all of the remaining classes soon? I wonder what the goalposts are going to get moved towards after that? There's something to be said that the vast majority of people who have actually played both games believe that BG3's handling of reactions is wildly insufficient as it currently is.