Michael, as usual, showed a lot of class. JPM is a little cry baby idiot, even though he has quick hands and immense talent. Clearly it was Juan's fault. If you look at the lap leading up to the incident, you'll see Juan practically glued to the back of Michael's car. He was looking for trouble, IMHO. A lap down, figured he'd mess with Michael, as he loves to do.
It's really inconsequential, as Michael will continue to stomp Juan's ever-loving a$$ for the remainder of the year.