Most light GA types don't have a 'rotate point'. They fly when they are ready!
Used to break my heart to watch the Manchester-based flying school PA 38s doing circuits at bumpy Barton - hammering down the runway up to and beyond the point the aeroplane would happily fly, elevator firmly down, nose leg having seven sorts of sh*te kicked out of it, until some mythical 'rotate speed' was achieved, way too far down the runway, and the little Tommy gave a prayer of thanks as it left the ground like a cork out of a champagne bottle, at last allowed to take to its natural element!
And this video isn't calling for the abolition of 'speeds', only 'stall speed', which doesn't exist as an absolute.