Till, Usman, Colby aren't legitimate contenders? Each is 1 fight away from a title shot realistically. Colby could fight for the title right now and no one would really argue beyond his shit attitude.
WW is actually in the weirdest place right now imo. RDA suddenly jumping in, GSP potentially coming back down, rumors of Conor going to WW, etc. You could see a situation where these contenders are stuck for 2 more years fighting lower level guys or the already-failed challengers. You can say it's a good problem to have when there's too many fights to make, but it actually sucks for some of the fighters looking to get to the top
Personally I think BW is in the best place as long as we're not stuck with a TJ/Cody/Cruz circle of title fights for a while