It's not over. If Basso and Pozzovivo both put time into JRod tomorrow, he'd get a maximum of 16 points. He might in turn try attacking the next day and finally have an off day by overcooking himself, and he then got passed by at least 4 cyclists he would get only 12 points and still be 1 point behind Cav.
I know everyone has been complaining about the parcours, but I'm actually really enjoying the fact that everything is still on the line, with just enough action in the first two weeks to give hints about who is good, but nothing definitive. We still don't know who is the strongest man in the race.