It has nothing to do with the horribly grindy meta, the horrible pricing, the lack of proper versatility, the steep learning curve and the repetitive gameplay (I put that point three times, figure that).
It is clearly the ranking system most players aren't even aware of.
Don't misunderstand, I agree with the suggestion, and it's twice in the list of commong suggestions nobody reads, but that was bad reasoning. With bad english.

