I did not pay particular attention to Brown, but I thought the O-line as a whole had a very good game, especially in pass pro. As you point out, the strip sack by Phillips was really because Josh held the ball too long.
I could not help noticing that Bradley Chubb was a complete non-factor. He lined up mostly on the Dolphins' right edge (against Dawkins) and he never even got a whiff of Josh. I could not be more delighted that the Dolphins traded a first round pick for this guy (and gave him a ton of money). He looks like a JAG.