I'll give you the only real answer.
Traditionally japanese comedians have always been men. As of right now the only big comedian woman in Japan is unironically a troon (but they don't call it that).
Idols have mainly been girls, but kpop has changed the meta, and now the market for male idols is nearly just as large. (You could make an argument for Johnny's being a traditional male competitor in the idol industry, but it's 1 Johnny's vs like 60 akiba46 nogizaka46 nagahama38 blah blah blah girl groups. Overall the market has always been girl idols)
Vtubers have turned out to be an interesting mix, there's idol-heavy chuubas like suisei, and jikkyo-type (comedy, kinda) like pekora. Then there's a new archetype which is successful in both, like marine.
So we know now that all types can work, and that's important, because traditionally japanese viewership of comedy shows/talk shows has always been male-centric. I literally cannot think of a single comedy duo in Japan that's two girls. There's one with an ugly girl who plays imouto (1guy 1girl), but other than that it's all Mano y Mano.
So how is this relevant? Well if we assume the values of Japan don't change, the comedy-type content is bound to be male-centric as well, it's just a matter of time and marketing. Or so yagoo (and probably most japanese people) thinks.
I think that the younger generation requires female comedians, because they've become what we call 'soushokukei', essentially weak, low-test. This means they actually feel threatened/annoyed by contemporary male talent, and prefer to watch girls. The opposite is happening with girls, who have become more nikushokukei, and thus are finding the girls very cute (think matsuri fangirling over holomem).
We are in a time where women have started to dominate content, aside from the hard opponents of girly content, that are essentially just incels in their edgy phase (think Andrew Tate), or the watered down girly content which is just girly-boys doing girly things (kpop boys).
Femininity is in. This is the zeitgeist, and though traditionally men have dominated the comedy-type entertainment industry in jp, I think yagoos bet won't pay off.
