IGh - IMO the DEN and KIN examples don't fit into this discussion about F30 vs F40.
KIN was a F30 touchdown 4,100' past the threshold with standing water. Aimpoint/touchdown point was the issue.
The other was a high sink rate unstabilized approach. Avg sink rate the last 1,400' was 1,100 FPM. Average, to include roundout for landing. Autopilot turned off 5 seconds prior to impact...on a non-autoland landing.
With high, or higher drag configurations, power is reduced slightly later but still idle prior to touchdown. Yes, even the 727 was supposed to be landed at idle but guys had all sorts of strange beliefs and techniques.
Low, or lower, drag configurations require earlier power reductions. Some configurations could be as high as 300' above touchdown elevation.