The NFL refuses to play on Rosh Hashana? That's silly. They play on Thanksgiving, Christmas, and New Year's. Extra stupid because they're not willing to play on the first day of it but have no issues with the second day?
Holidays and baseball are equally useless excuses to try to not play some football
It's not unheard of. Back in 2009, the Jets successfully petitioned the league to move a game from 4:15 to 1 p.m., because it was the eve of Yom Kippur; as a large portion of the Jets' season ticket holders are Jewish (and even non-observant Jews tend to stay home during Yom Kippur), attendance would have been abysmal.