I'm not sure how I feel about FEMEN in general, but their tactics seem singularly ineffective when used on rank misogynists like Allen; the misogynists get a free show that they actually like, and (I would imagine) the majority of the attracted audience would be other misogynists.
*shrug* Then again, what do I know? Maybe they've worked it out and it furthers their goals somehow.
This honestly seems like low hanging fruit of the worst order, especially for a group trying to be as edgy as Femen. It'd be like Antifa showing up a Liza Minnelli event because one time she performed at Sun City.