Yes he has no BJJ credentials aside from beating that one Brazilian world champion, and of-course beating that other Brazilian world champion on 10 days notice with a 30lb weight cut wouldn't impress you much. I mean Galvao and Maia are nothing compared to Leites and Lutter.
You could also point to his D'arce choke victory over Tom Lawlor and his standing guillotine chokes as being mere lucky breaks and not indicative of any "real" submission skills.
But I mean what's more important his accomplishments or his belt.
Um, I know you are just talking out of your ass. But you do know that he was praised for going the distance and doing solid vs. Galvao on little formal BJJ training right. He didn't actually BEAT him.