I don't think it's that people say he's the funniest now. People willingly sell, promote, and hype "content" if they personally like someone involved in it. Especially when the person has gone through some adversity, or believes all the good political things, or has all the good opinions on [insert topic]. Last year remember the way people fawned over Everything Everywhere All At Once and spent months glorifying members of the cast? Or a few weeks ago when everyone was fawning over Jenna Ortega for dropping out of the Scream movie due to censorship on Palestine/Gaza. There's a rally-around-the-flag trigger in people's brains where they demand that all content adhere to whatever their personal believes or ideals are. And when an actress, comedian, film etc do all those things they get put on a pedestal.
Katt told a bunch of blatant lies on that ep but he told people what they wanted to hear, which is all that matters. People want to believe that the only way black men gain success in America is by sucking white dikk behind closed doors. They want to believe any success a black man has is because of gay shyt because it allows them to mentally accept their own professional failures easier. "Only reason I didn't get that job is because I didn't kiss a white man's ass or worse." Yea ok buddy. People are always going to side with someone they perceive as the pure truth teller or oppressed figure who didn't achieve xyz because The Powers That Be said no.