Thanks to all of you for your inputs which make great sense
A little doubt again : as old rope says many significant failures that could affect your ability to stop in the high energy regime are inhibited, like the emer elec conf. I had it once in the sim, during the takeoff roll, set up as loss of AC BUS 1 and 2 simultaneously around 110 kt (V1 was around 130 kt ) with a wet runway. Master warning sounded and I instinctively thought about engine fire and rejected... guess what I barely made it. With a higher takeoff weight and closer to V1 in such a situation one would easily end up stoping abeam the supermarket nearby the airport. As per the FCOM the warning should be inhibited in phase 4, is it a SIM glitch ?