Actually I have just remembered that there was a discussion of it on the BBC at the Paris Diamond league about a week after Lemaitre broke 10s. Jonathan Edwards and Colin Jackson spoke about it briefly, specifically mentioning that he was the first white man to go under 10s, with Edwards even asking Jackson if colour was a factor in sprinting (to which Jackson replied that it wasn't, and there was no excuse for white sprinters). This wasn't on a main channel however, it was on the Red Button. As I said before, it was mentioned briefly at the European Championships that year by John Inverdale, but Johnson didn't take kindly to it.
I think that Gemili only lost to Chambers in the trials because he was so nervous and tense, he was trying to force it and ran his worst time for ages. He still came second though, which says a lot for UK sprinting at the moment.