Faye and Pintsize are different characters, with different issues. You can't really conflate them.
Faye's actions bothered me because she was an adult human. I expected adult behavior from her. Pintsize has always been a child, with a child's appearance and a child's understanding of the world, over-the-top sex stuff not withstanding. Faye frequently bullied people. Pintsize never did.
Pintsize never actually hurt anyone, or tried to hurt anyone. He was rude and grossly oversexed, but it was impossible to take his sexual suggestions seriously because he inhabited a barely humanoid body with no actual sexual organs. Or fingers, for that matter. The same sexual suggestions in his current body carry a more plausible element of threat to them, even if his sexual organ is apparently a USB A slot with an extension cable.
At this point, I don't particularly want the old Pintsize back. His gags usually weren't offensive, but I can't say they were all that funny either. I'd say most of the actual humor came from how other cast members reacted to him, or talked about him. I do think the transition is difficult to accept because it's such a dramatic change.
On an unrelated note, I think "tijubas" is a perfectly good slang term for breasts. It's no sillier than "boobies" or "knockers."