These predictions and conversion charts are garbage, especially when you consider the differences between road running and track running, between running a course and running in a circle, between the distance, between having precise pacing and not.
I'm not saying that he "can't" do it, but I'm saying his track performances don't prove he can. Usain Bolt's don't either. He looks more like a track runner, Ryan Hall looks more like a road runner just based on build. It's just an intuitive observation.