This is what always happens.
They only want them to fail, because they want ANYONE at the top to fail. Most of the people who get on those crusades have been doing it long before YMCMB came along. They care more about them failing than their favorite rappers succeeding.
You ever notice 50 Cent & G-Unit doesn't get almost ANY hatred these days, because a lotta people just don't give a shyt what he's doing? It's mostly because he's not on top anymore. They only cared how wack he was when he was the biggest name in the game. Before him it was Jay, before that it was Bad Boy, before that it was Death Row... if you travel back far enough, there were even "purists" that hated on Run-DMC and LL.
So it comes with the territory, and it usually has very little to do with the actual music more than it does who's making it. Even if YMCMB dropped something EPIC, there would still be people praying for them to fall off.