It's part of the game. To have gotten angry about it would give him the psychological edge. By remaining unruffled, and now leading the overall championship, he'll be more worried.
Sure, those points could have been useful, but sod it, it's done now.
I've finally put together the first race of my season this year, was a good race but i pushed my front tires to hard so when i needed them the most they where gone so I ended up in 4th place