"This law subverts our ability to be watchful." - You need to pay closer attention.  All this bill does is make current case law here in Oregon statutory.   The legal system is already operating on this basis, and no abuse has ever occurred.  

"Conflating the civil disobedience of a group who has to date never hurt or killed anyone with radical Muslim extremists is nonsense" - No, they are very much the same thing.   Both are being tracked by the Southern Poverty Law Center and others for being hate groups, as well as being monitored by the Department of Homeland Security.  Both pose a real danger to the government and to members of law enforcement.   They are heavily armed, and often threaten violence.

You forget about all of the many reports that came out of Burns, of people being intimidated and threatened by the Malheur occupiers and their supporters.  Many people in Burns were scared.  Those arrested all appear to be very dangerous armed individuals, who are mentally ill.