It does surprise me how so many pro/sponsored skiers do all this gnarly insane shit without wearing helmets, especially urban skiers.
I mean yeah helmets aren't the coolest thing in the world, I get it. But just one slip could lead to a cracked skull and maybe death, or worse -permanent disablement ? I'd never dream of trying that stuff without a helmet, and honestly I'm surprised you don't hear more horror stories about urban / park skiers seriously hurting themselves.