@tsyum the vox article is misleading, though, as vox so often is.
The right to protest is not on the table here. This case is all about how state law engages with a person potentially demonstrating negligence by directing a situation that ended in violence.
That has nothing to do with protesting itself (unless one believes protesting is necessarily violent, at which point eek), but relates to a content neutral application of community standards of responsibility for safety.
It says, protest all you want, so long as you do so in a reasonably responsible manner.