It's clear that Rosberg doesn't have an answer at the moment to stop Hamilton.Well then Nico should have qualified on pole, but he didn't, it is what it is. If dirty air were such an issue, the pole position qualifier would always win since they usually get out in front first. The bottom line is that Hamilton was considerably quicker and proved it right before his tire change when he ripped off two back to back fastest laps, it was quite clear at that point he had been holding back.
I wonder when Rosberg is gonna return to his usual aggressive self on track.