I don't know what you were watching last year, but aside from the euphorbia of having him back he was not the same player, he was slow to the edge on toss plays and though was effective between the tackles did not have the speed or power of previous years
The Saints let him go at the right time and brought him back based off need not production.
Ingrams best role is that of a club house guy. He has been done since end of 2019 now. Even 18 his final season he wasn't the same player. 15-17 were definitely his peak years looking back.
The 19 year in Baltimore appears to be an aberration. Thier lines are so good at creating holes you can Drive a Mac Truck through. Lamar Jackson causing opposing defenses confusion heloed Ingram greatly as well.