Government censorship nannies from, likely, the FBI (re: Twitter Files), in their partnership with YouTube, decided that's bad and they don't want people searching for it. Turns out all this corporate censorship that's been going on, which is heckin' OK because it's just CORPORATE censorship, is government censorship too. But it's cool because it's designed to stop fascism, NOT democratic socialism.
Slava Ukrainia!