Well, I flew another sector with said pilot, and I asked him about his background: 727 (FE), DC-9, MD-80, and 737.
I'll estimate I've flown with well over 300 pilots on the 737, but for simple math: 300 pilots and 3 of which use this technique. 1% use this technique. I've flown with many former 727 and DC-9 pilots who do not use this technique.
The last leg we flew, he jockeyed the power around 40-60+ % in the flare-float and took the jet to the end of the runway. There was no shear/gust/high sink.
Not impressed with this technique, but thanks to all for the interesting input.