That doesn't help the case where some of the 10 may be infected but not yet test positive before the game - if some are infected and test negative they will play and possibly infect Bills players
Granted - this is a risk in all cases (players during the week being exposed/infected but not testing positive until days later) - but in this specific case, the NFL could minimize risk by taking those 10 out of the picture - knowing because of their actions they are at higher risk than those who followed the rules