Good except for the fact that it's teaching kids to sing out of tune.

No, it's teaching kids about art and music. Whether they sing out of tune with the show or not is up to them.
' It's an extreme breakdance ' - Zick, Monster Allergy

I have to admit, that really bothers me. I know they're supposed to sound like children, but I sang in a children's chorus when I was young, and we had tons of young children who could sing in tune -and- sound like children. Its not that hard.

They sing Hogwarts style.

They mispronounce words also like accelerondo pronounced with a "ch" sound. If they wanted to teach kids about music they should at least pronounce words correctly.