You should look up his speech from a few years ago it was far more awkward than that.
I enjoyed this speech and it came off as genuine. I think he did a great job, his profession is surfer, not public speaker. I don't know.
I felt the same way, and thought is was humorous. He's probly pretty nervous considering most of the entire surf world will be watching him speak, which likely doesn't come as naturally to him as his ability to rip the tops off waves