Generally speaking, I agree. BUT Lamar will be back with others who are injured and it's not like they fell behind the Chiefs or Bills.
The Steelers are not some almighty powerhouse.
The Steelers have to play the Packers, Colts, Chargers and the division rival Bengals twice in the next 5 games.
Let me see their record after that.
Later they have the Bills, Lions and Ravens (twice).