Apply the usual test for gender/number/*-ism: swap the gender/number/*.

So: if someone had left gear all over High E all day just because they were doing a photo shoot or project-ing it, would we even be having this "debate"? I think not.

Ethics aren't different if you're on a 5.12 or a 5.2 ... the only thing different are the egos or lack of humility involved. So yeah, bad on them for leaving it there, no matter who or what.