I disagree with a lot of that. I don't see any difference between it and Powerpuff Girls. In PPG, you've got the tom boy one, the cute one, the leader one. They save the day, they go to school, shit happens every episode, rinse. There goes your tropes you're talking about.
This is Powerpuff Girls' pilot episode as seen on What A Cartoon Show.
In what way, in terms of content, writing, and characterization, is it any different than MLP: FIM?
I'm also not understanding the glorified toy commercial thing, and Hasbro has even admitted that the audience for the show is beyond the little girl bracket. Many people older than that like it.