This is an old video that's been around for a long time. And comments by you ignorant non pilots are pretty stale as well.
(It's all in the preflight; gross weight, runway length, density altitude and wind speed and direction.) if the wind changes, it makes the runway shorter. All of us at some time have stayed planted until the numbers roll under the nosewheel and rotated over the approach lights. Gotta have that airspeed.