Sometimes, I wonder if an artist trying to accentuate particular parts of the body (i.e. the realism of the drawing style or interesting traits) doesn't rub a few people the wrong way.
It's not really surprising, that someone might do that for parts someone (though, maybe not everybody) might be able to get more out of (or some other reason to like that style, such as aesthetics)...
Anecdotally, with non-sexual art, I'd say there's been a bit more censorship along those lines (not really a good thing)... Then again, there's not much data to go on about censorship there.