what are they contesting?
the fact that there was a "legitemate" (in maclarens eyes) giving back of the robbed place by cutting over the grass and gaining a big advantage

or

the severity of the penatly?

either way, i can't see either of them not sticking

the hamster didn't give it up cleanly enough and 6kmph on a straight where they were reaching 150 mph is not a lot really

and the penalty is just for the reasons due to it ebing in the ruels that it's the penatly you will recive if you break the ruels at that point in the race

i don't think it's a harsh decision handed out seeing as he would have more than likely passed him in the next lap or so, but it was a very sportsmanlike move which is how they will see it

don't forget, if they make too much of a song and dance about it, ron will lose even more hair so that's why he's taking it very easy