Sounds like all those Republican owners have had enough of losing money:
The NFL just informed clubs that if a game cannot be rescheduled during the 18-week season in 2021 due to a COVID outbreak among unvaccinated players, the team with the outbreak will FORFEIT and be credited with a loss for playoff seeding, per sources.
Massive implications.
— Tom Pelissero (@TomPelissero) July 22, 2021