"I see 5000 ft (or much less)of runway ahead, I stop...big deal."
...just because you still see lots of pavement ahead does not ensure that you will stop before it ends, because when your brake energy has been dissipated you can stand on the pedals and you will continue rolling with zero brakes.
Typically there's an average of a ten knot spread between V1 and VR . . .and you're telling us that in that 2 second interval you could decide that the airplane would not be able to fly . . . ?
A nut case B747 captain with your mentality at Bruxelles had heard a bang [compressor stall] after V1 and had imagined that the airplane would not fly, then he had aborted more than 10 knots past V1. . . destroyed the airframe and had narrowly averted the deep end drop unto the rail tracks and high tension wires.