despite its utter lack of antagonistic tone.
I think this is the biggest problem with the song, really. When I was at the age that Disney movies aim at (which is the only demographic this movie will ever fall upon har har har), I didn't have a sense of plot, and I'd take songs out of context. I took this song out of context and look what result I got. Additionally, despite the song
supposedly not being about hiding your true self, the majority of the characters in that scene seem
pretty enthusiastic about that message. Not to mention, they make the people who share their inner passions look [tornado fang]ing stupid in comparison. I hate to use a strawman like this, but...
think of the children! 
THE FACT I KNOW THIS... ehhh who am I kidding it's such a stupid narmy disney movie and it's pretty fuckin' great. For a laugh at least. The sequel though has this gem about a similar theme.
The Room is pretty [tornado fang]ing great for a laugh too. Doesn't mean it's good.
Similarly, don't worry, everybody has guilty pleasures.
[spoiler]
Like Shakugan no Shana.
[/spoiler]