This is actually legit. Only thing I don't agree with is him birthing self confessional rap. I would say Tupac did that, or Jay with BP1.
U gotta take the good w/the bad tho. Yeazle also fathered the out of control ego, the wifing up of professional slores (I see u Wiz, I see u Tyga), half-baked "art rap" and "experimentation" (I see u Jay, I see u Guitar Weazle), and the whole idea that u dont have to be nice at rapping, as long as u have the right story and look like you are trying really hard (the whole rap game). I would put dude's contributions to the game since 808s in the net negative overall, as huge as they might have been.