It is, but it has the opposite issue. Wikipedia isn't a place for opinions and it doesn't portray itself as a "free speech zone". It easily rejects new information. Too easily, in that "notability" can bias it towards rejecting consequential but obscure historical figures, especially from people who were marginalized at the time.

That's great for making Wikipedia safer from abject misinformation, which is a huge plus. It's less good at ongoing discoveries and news.