Hmm....I must be in a fog today, I still don't get it.

But, if the person organising this event is asking that it go off in a certain way (no shirts with slogans) then, maybe she is doing it for a particular reason. If I were to participate in the event, I would tend to follow her lead. No point in anyone getting arrested, it kind of makes you look 'nutty', and wouldn't advance the cause, IMO.

But, again, not sure I follow it totally.