Rosberg read way, way more into it than Hamilton intended. It was more like "don't get up, here you go" instead of rubbing number 2 in his face.No it wasn't cool of Lewis to throw number 2 branded stuff at Nico. No need to rub it in.
Granted, Hamilton shouldn't have done it because he should have known Rosberg would be sour from making that mistake towards the end of the race, but Rosberg shouldn't have overreacted.
Still the TV initially only showed Rosberg throwing the cap at Hamilton, which made it seem worse.