It involves breaking the law, ergo it is criminal. What would you call it?
I changed it immediately knowing this would be an answer.
It's the rhetoric behind the usage, the implication then of anyone breaking the slightest of laws becomes a "Criminal"
I would guess that's pretty much every person in the country then.
I'm sorry, but an intrinsic part of protesting, striking et al are supposed to cause inconvenience or else they don't really carry much weight at all do they and if this breaks some minor law, well, so be it.