I wonder how much they actually care about multilingualism during auditions. Is it just a tie-breaker of sorts, or does it actually earn you some points? For example, is it possible that Bae made it to Hololive over someone like Selen just because she's nihongo jouzu whereas Selen can barely pronounce her own name? And what about languages other than Japanese, does anyone actually care that Kronii can speak Korean, or that Enna and Selen are chinks? And don't forget Finana's Hmong. They all just stream in English anyways. They're the English branch, nobody expects them to speak different languages.
With Japanese specifically, I understand the bridge argument, but you already have Elira, Rosemi, Petra, Shu, Yugo, etc. Surely it doesn't need to be a priority at this point. Of course, the amount of Japanese speaking applicants is going to be disproportionately large for vtuber auditions, so it's not outside the realm of possibility that the 3 best female candidates happen to all speak Japanese. All of them being native speakers is a bit more strange though.
Speaking of Selen Tahtsookee, she also played the choo-choo game.