They have to wait for an update to come (the entire game is about waiting).
A monster isn’t a repeat idea (BBB is being original).
A monster doesn’t have a super flashy and big sound that plays for 90% of the song (some instruments are used for flavor).
A vocal monster doesn’t have a crystal clear voice (it emphasizes the whole point of anyone being able to make music).
A monster isn’t the same as predictions (that’s literally the #1 rule of making predictions)