That's because Airborne paratroopers don't freefall, they jump and their parachute opens immediately with a static line. Find a special ops guy and they may have the military freefall experience. Skydivers in normal jump suits can cover gound at a 1:1 glide ratio. Skydivers in "birdman"suits can do 3:1 or better.

As to whether any jet model could do 275 straight down, power off - not likely. Intakes go from being a part of the power system to being little parachutes of their own. Most turbine models have better than a 1:1 thrust ratio and might approach that speed, meaning the drag at max level speed would be more than their weight. So, a model that does 250 flat-out would do something less in a vertical power-off dive