Stator you have my sincere apologies, but to be frank there was no more information of educational merit, just speculation as we are prone to generate.…. So here’s some education, a V1 for a long runway will not be of much use on a short one. The situation would not be that dissimilar to wind shear (tailwind) on take off, where you reach V1 a lot closer to the end than you would otherwise. If you have to stop, you do so if below V1 and you assess the runway remaining is sufficient, the 777 crew, quite obviously (my speculation) decided there wasn’t.