Well then the exact same happened to Federer in 2005-2009 when Nadal couldn't make it deeper into non clay tournaments, which brings me back to my original point:
The H2H has too much of a statistical bias to give us a good indicator of the better player. Correlation=/=causation.
Fed and Nadal meet each other mostly in finals or semi-finals. And that stats proves for me who is better player.