Obviously, the company has come a long way since then, and I doubt someone as smart as him wouldn't have learned a lot during that time.
I hope that sometime soon I can see him again so I can change my impression.
Of course, as you mentioned, he arrived just in time for his talk, so he didn't even know that he was directly contradicting the advice of previous speakers.
He also scoffed at any form of testing when an audience member asked.
I was beyond unimpressed. Hopefully he redeems himself this year.