Take the first part that because it isnt passive and rather something you would chose to do and could happen frequently and requires you to be the absolute highest level aka where the story is supposed to be legendary and even mythic
I also don’t know many dudes in my gym that could kill 9 people in six seconds with individual attacks,
People do not know many but they exist and they are nowhere near legendary, I have seen a teen in real life who could put 9 arrows in target in 6 seconds with full draw attacks (snap shots are even faster) and she really could be at your gym and videos and competitions exist showing this is more than a bit real. Sure she does not do this in a actual battle environment while under fire but I do not consider that even approaching mythic or legendary. Sword strokes take less time than an archers draw and fire, partly because one can lead into the other if enemies are crowding into you. The fighter is slow compared to a real life person which in the game story is not supposed to be high level.
An average football player according to the statistics I have read can standing broad jump 10 feet, ... in other words in 5e he has a 20 strength... but that is a 5e characters strongest again not mythical and not legendary.
People have fallen out of airplanes and walked themselves to the hospital in real life ... it can happen too. However... in spite of what was said we do still have to go beyond gym references and we do have to sometimes compare to the casters and to legendaries and myths the low level wizard spell just saved the entire party from any height fall no damage at all which is far more impressive and in some ways more likely to happen than one individual falling and merely surviving.
What would I want to see for a start, out of a Legendary and mythic athlete would include athletics / acrobatics to prevent falling damage at all, archery shots to pin a falling target to a cliff wall and leaping down faster than a falling ally and catching them or leaping many many times more than the football players.3
Using your limited understanding of the skills of your guy down the block to decide what is possible is part of my complaint we do not agree on what should be possible outside of the strict combat arena, by those who are slaying giant sometimes flying and fire breathing, heavily armored intelligent beasts the size of houses with a short piece of metal.