Hmm, I'm not sure! Firstly, it's rare that I like games based on movies or shows, so I'm sorry if I'm a bit biased.
Aside from that, I'd be worried the game would be too easy, considering the target audience for MLP is children (remember that us older fans are outweighed by the amount of younger viewers even though our fandom is big), so I'd feel like I wouldn't find it challenging or all that enjoyable! The concept is nice though, I just feel like it'd be a bit too simplistic.
That's why I enjoy the fandom-made games and mods!