I don't quite understand your question Squall.
Sure the Muppets have branched out into more adult humour in recent years with Muppets Tonight and what I've seen and heard about the new movies. They are a little on the filth side without being blatantly obscene but Fraggle Rock from the episodes I can remember at least they seemed to be more clean cut. Of course Jim was still alive at the time FR was made so that's why.
If he had been alive to work on MT with his team I very much doubt that he would have approved of all the dirty jokes they put into that series. I don't think he was inclined that way in himself.
But as to your question I think I'd possibly be able to help give an answer if I knew what it was about the Gorgs you think to be adult in reference
If you feel uncomfortable posting publicly PM me and I'll see if I can clear your worries up or not.