Yeah, similarly most prefered "Ren & Stimpy's" kid show over the later adult incarnation, because the original was already vulgar enough, and it was interesting to see what humor they could get away with.
The adult version with no restraint became honestly uncomfortable to watch. Especially, "Ren Seaks Help."
Not saying all adult animation is bad, I like stuff like "Superjail," and "Aqua Teen," so I'm no prude.
It just depends on how it's done.