Looks like Sean posted some thoughts about his weekend over at Motodrive.com; you can read it here. He said, "First moto I tweeked my knee that I messed up a few weeks ago before the first British Championship here so I ended up going back so I could wrap it up and ice it so I could race the second moto."
Hamy also had some words for the motocross fans that called his performance into question, but he wrapped up his post with some nice shouts to his supporters.
I'm glad Sean is and has always been willing to dive in headfirst on the motoboards and post his own thoughts fearlessly. But, speaking as someone who has unfairly criticized him publicly in the past (and apologized for it), I hope he can learn to ignore the negativity on the 'net. Some of those folks out there are jackals; they're just looking for someone to respond so they can dig into them even more. Perhaps a little media training or advice from a public relations professional would help?