Notes:

http://www.deviantart.com/art/Growing-Around-Episodes-Picture-Day-513309014
I don't know how much this episode's been discussed, but it's a complete torture p--- by Enter's standards, even with the shoehorned-in "heartwarming" ending. It's basically the kids tormenting the adults, especially Linda, the entire episode.

Enter's rationale for why they "deserved it" is basically "They're adults who want to act like adults, and that's bad,". Enter hates adulthood and responsibility; that's why the schools in Growing Around aim to create a society of manchildren like him. Linda is the usual target for Growing Around's twisted aesops because she's one of the few adults who isn't happy with Enter's fantasy world. Linda just wants to live a normal life, so the world of Growing Around puts her through hell to "teach her a lesson". She gets dressed up to get her picture taken? Better chase her around the school spraying ink and throwing pies! She wants to relax and eat a normal Easter dinner with her family? Make her play with her food like a toddler! Enter has a very f----- up idea of what lessons cartoons should teach and how they teach them, far more than any of the real cartoon writers he rages at.