> by force, intimidation, or threat
You seem to be glossing over the key piece of that statute. Peaceful protest is protected by the first amendment (free speech, right to assembly).
Blocking law enforcement's vehicles and their person (I saw several protestors put hands on officers), when they are conducting arrests, certainly seems to fit the bill.
If you threaten to kill somebody then follow them around for days at a time, is that intimidation?
Intimidation, or threat at the very least seems applicable here if you have any idea of what's going on in Minnesota and what these Signal chats are being used for.