Difference is that the 1991 Bills had the historically bad Indianapolis Colts on deck after the KC massacre, while the 2020 Bills get the defending SB Champs coming off a loss themselves.
This is where the fans of today catch their fans eyre. The Bills laid an egg right when their next opponent isn't the pathetic 1991 Indianapolis Colts waiting for them, it's Mahomes.
Big difference there.
The 1991 Bills weren't going to let one bad loss snowball when the schedule eased up considerably for them. The 2020 Bills schedule doesn't appear to be as forgiving and the 2020 Bills don't have a Thurman Thomas to lean on when things go bad.
Another big difference.
We will see what kind of heart this team has moving forward.