"No: the grandmasters chose the best candidate to draw as black disregarding all alternatives. If a 7-men endgame table base draw or a 3-fold repetition is reached in all lines,
then in retrospect the selected black move was right."
you assume that thats whats going to happen.
" 'That ... every even integer is a sum of two primes,
I regard as a completely certain theorem, although I cannot prove it.' - Euler"
yeah, but that doesnt mean anything.