Taken from the comment section:
She is (probably) teaching a class on child psychology and is showing how not to deal with children. She shows what not to do, which is to just yell and scream with no chance of reasoning. She's showing how inefficient it is and how it can basically cause problems, she isn't mad about the pomegranates.
About the GTA controversy: I personally think it was more of the publisher's push to defend it's cash cow rather than Rockstar itself. GTA is a major cash cow for Take Two, and I could see them hindering mods in order to promote the online mode (in a twisted sense). Rockstar is a subsidiary of Take Two Interactive, meaning that TTWO could have told Rockstar to ban mods for the game. So it wouldn't have really been Rockstar's fault if Take Two ordered them to ban mods.