Well, I can't see any good Catholic trying to get AI to write a song like your test, so it may not be much of a problem, but who knows what other biases there may be.
I'm sure it wouldn't write jokes, poems, arguments, or anything else that is critical or satirical of a "protected group" and that is the point.
There is no reason -- Catholic or otherwise -- to put guard rails around "protected groups" like they are above criticism, satire, or joking about.