Why would you be surprised that an account that was accused of being part of a content system spreading misinformation would be suspended?

A person can say what they want but no-one is forced to listen to it or help promote it.

As well, if this account was part of a system of bots and fake accounts that were spreading a particular message isn't that something that you want to see removed from a social media platform?

Isn't authentic information and material important?