His newest album is an example of this as well. Ghostface has had a cult following but limited wide appeal. Death Grips gained a cult following in the past 1.5 years, and much of Yeezus sounds like a bad Death Grips album.
Claiming that soul beats weren't a thing in 2000 hip-hop is silly. Released in '99: Mos Def's Black on Both Sides, the Roots' Things Fall Apart. Hip hop started with soul beats, and soul has always been a part of hip-hop.