The concept is still basically sound, although I wince at "mushing."
Basic short field over obstacle landings involve a slower airspeed and higher descent angle (behind the power curve) than a "normal" landing. That's produced pretty much as Langewiesche described.
Yep, when high on final, I definitely get (and teach) the airplane into a short field obstacle descent configuration to increase descent rate and angle while keeping airspeed from increasing too much.
It's fun to watch the alternative. Nose down to the spot, increasing airspeed even with power at idle, and an overshoot because the airplane has way to much energy when it gets to the runway.
Notice: not one word about whether pitch or power is for airspeed or descent rate.