Yes, I was thinking the same thing and personally would have waited for what Mr Boeing quaintly calls 'ground contact imminent'. Again, not being critical; I wasn't there and other factors might have been in play. Skin damage in wheels up landings tends to be fuselage and nacelles' leaving the wings clear where the fuel is on most light twins. The other consideration is to keep the flaps up, especially on a nice long 45m wide runway. A recent gear-up landing at Redcliff in a Navajo did some surprising damage to the flaps and flap attachment points with great ripples to the upper skin panels.
.