He was rated ahead of both Darnold and Lock when he lost his job to Tannehill.
Mariota completed 1 pass in 2021, he completed 17 passes in 2020, 95 in 2019. So last 3 years he seen a bit of garbage time, but not a lot. IDK why he would be rank higher then anyone TBH seeing he's hardly played for the last 3 years.