It's because this isn't a content restriction. Anything that was speakable on TikTok remains speakable on platforms that aren't owned by U.S. adversaries.

The distinction between this and China's "great firewall" and speech restrictions should be obvious.

The distinction between an US firewall and a Chinese firewall?

Yes, there's currently a very clear distinction.

Definitly. We need to find more things to block, otherwise it won't be the greatest firewall ever made.