Is that a flat bar?

Looks like bullhorns to me. Or flat bars with bar ends. In either case, his hands aren't positioned where they would be on your bars if you wanted to operate the brakes or the shifters. His palms are (mostly) perpendicular to the floor like they would be on the drops or on the hoods, not facing down like they would be on a flat bar or the tops of a drop bar.

That's why I'm contending that your flat bar position is more like the tops on a drop bar.