Oh, I found this song a while ago, and I was going to post about it but I forgot.
The song wasn't that great, but I didn't see it as dissing Animorphs so much as just using it as an example in their song. I doubt the guy who wrote the lyrics really thought "Man, I really despise Animorphs, I'm gonna write a song about how much it sucks."
Besides, Animorphs isn't really cool anymore, to the majority of people.