From what I’ve already heard/seen? I don’t like it.
Main series Knuckles isn’t exactly the sharpest tool in the shed, what, with his gullibility but let’s give him some credit - Sonic Team had the right idea in making his less intelligent moments stem from naivety. And this makes sense. For his entire life Knuckles has lived in isolation presumably never seeing the world beyond Angel Island. This justifies and is a good explanation for why he is the way he is.
What is Boom!Knuckles’ characterization turning out to be?
"There are things inside these things!"
"We are definitely not at the beach anymore (Sonic: “You can say that again”) … We are definitely not at the beach anymore”
"then my delicious whipped cream filling will shoot out like toothpaste!”
"I sound like a fortune cookie *bites* …eh, but I don’t taste like one”
Given that the Chaos Emeralds are said not to exist in this continuity and given that by extension it is unlikely that the Master Emerald does therefore meaning Knuckles isn’t it guardian and Angel Island likely doesn’t exist, there’s no good reason for this kind of characterization. Hell, even if he was still the ME’s guardian and lived a life of isolation that’s still no justification for his morphing seemingly into a non-sequitur spouting thicko.
It isn’t clever.
It isn’t a better way of using the character.
It isn’t interesting.
All it basically amounts to is simplification of a character’s personality into an annoying, overdone archetype.