If he had a powerful Bloodline, a powerful Mental Realm, and a powerful Dao, could it just be then that his other three Pillars were so piss poor that they dragged him down to such an extent? The more Mae thought about it, the more this seemed to make sense. In fact, even Ryu was beginning to think that this was true, the only difference was that he didn't add his Meridians into the mix.
Maybe Ryu's weakest talent currently was his Bone Structure. It was only at the Ancestral Grade, a level that was around the Fourth Heaven in quality. Although it had been mutated by his Bloodlines and the formation of his Spirit Bodies, it was still only a minor step beyond that.
It was very possible that the Dao Lord didn't like this weakness and wanted to pick out a genius who was almost perfect in every aspect. But Ryu didn't believe that everyone around him was so perfect, they definitely had weaker talents, and there were probably some with talents even weaker than the Ancestral Grade.