I don’t think he’s arguing that. Artists change and evolve. But usually our rap artists, at least, start with their own thing.
Beyoncé is a pop artist, is she really expected to sing over southern funk and screwed tracks? Of course not. This seems like more of the Drake is a pop artist than a hip hop artist.
Motwown IS r&b, everything else is a subgenre of black pop. Cac’s just label anybody black and harmonizing as r&b, especially today.
Drake never seemed to start on or even bother with the Toronto thing. He just started using Toronto slang in his 30’s. He’s never really “reinvented” himself as he hasn’t been himself since the old recording of him using the hard r.

And I know black artists started country, among other genres, but those trailer park mutants can have that shyt. I don’t want them rapping either. I had a co-worker who would play “trap country” on his phone sometimes. Everyone despised that bullshyt lol.