It seems there's part of the budget wasted on playlist that are clearly not fit for the music and that have no relation to the genres selected so its not really on the curators end for not accepting. I've had several reviews mention either an opposite mood or different genre than selected
Playlist Push is a great tool, the feedback from curators is very helpful. I am missing more support to target the right curators (genres are not granular enough). In the end you pay per submission, not per listing.