ricardo,

The state seriously depends on the work of MTA workers, so it was forced to negotiate with them and not punish them even when the workers chose to act against the law, because it had a pressing need for their cooperation, their services.

I don't think this holds for kickboxing school/gym owners, trainers, promoters: in their case the state would not have a pressing need for their services, so the state would not be forced to cooperate, negotiate with them, and could conveniently go the power way and prosecute.

The state probably wouldn't shed any tears seeing a couple of kickboxing schools to close down and go out of business, they won't lose much by that - however people in the kickboxing business/scene would lose quite a lot!