Faust's run had tons of intentional adult references, at one point they even cracked a joke about "spiking the punch" at a party.

It makes sense when you consider that she was deliberately trying to make the show tolerable or even amusing for parents so they'd spend time with the kids while watching it instead of wanting to shoot themselves whenever it was on. It's the same thing classic cartoons like Looney Tunes used to do. Sure the kids love the slapstick and that's about all they see, but those cartoons are packed full of adult humor.