It's essentially true. Liberals would rather posture than enact real change; they would rather police people's speech and do stuff like this than actually change any systems of oppression. The unspoken motto of the liberal is: Posture and do things only until it starts to change the status quo, then it's too much. This is especially true of elite liberals: posture and do things only until it threatens your wealth and status, then it's too much.
This is essentially what Noam Chomsky has been talking about his entire career: liberal propaganda, such as that of the New York Times' editorial board, who regularly publish US government propaganda (US officials say..... the DOJ alleges.... The President's Cabinet believes.....—it should go without saying that just because a government entity says something, doesn't mean it's true).