Baltimore is a good team that has suffered a ton of injuries the last couple of years. Their 8-9 record in 2021 is not indicative of how good they actually are. The Ravens started 8-3 this year until the injuries hit and they lost their last six games. Five of those games were by 3 points or less, however. Three were by 1 point.
Baltimore is a team built to run the ball (a quarterback who is a physical freak but is limited with accuracy and not great receivers to work with) but when the only real breakaway threat to carry the ball is the quarterback and he is hurt for five games, the entire team is limited. If Penny were to join the Ravens he will be going to a team with a built-in scheme for how to open holes for a running back.
Penny showed over the last third of the 2021 season that if he can get even the implication of a hole he can go for a 30-yard run.
Baltimore’s offense still needs quarterback Lamar Jackson to be healthy and take fewer hits but a back like Penny would allow Jackson to be hit less because Jackson wouldn’t have to run the ball as much. Penny would get enough carries (again, if he can stay healthy) to have a 1,500-yard season in 2022. I am not sure the Seahawks offensive line is good enough to help him do that.