Oh. Got you.
So the NFL has been around for awhile. There's been a lot of QB's drafted. Mahomes has the second best TD pace in NFL history, just second to Peyton Manning (who is going to be in the Hall of Fame) and ahead of Tom Brady (who is going to be in the Hall of Fame).
So, in the last 98 years of professional football, Mahomes is having the second best season of any QB ever.
And because there's been so many QB's over those 98 years, it's really really really really really really unlikely that Josh Allen ALSO has a top 3 season in NFL history.