You're right, he isn't really poetic at all. But any dumbass can write a simile, but how effective you make is what separates the brilliant from the average. When i hear Tupac say "Flows go deep as Poseidon" i say , damn, that's pretty good. When i hear Game go, "I beat on niggas like Dr. Dre drums", it makes me cringe.
I don't think it's all about "dick riding vs. hating." But when they're on top, i like to question why they're on top. There's so much talk on this guy, and to be honest, i don't see him to be all that talented. Maybe he rose too quickly, and hasn't matured as an artist yet. Or maybe the state of the rap industry is in such a shitty state, that we look to him to bring back what we've been missing over the past 5 - 10 years.