I think the idea is correct. The key with Goff is keeping the turnovers down. If the Rams' defense plays well the rook will not feel like he's gotta win every game on his arm. It will help him to play within the system and ease his transition as the Rams key on field position and the use of the running game to keep things on the up and up.
Also it will pad the kid's stats if he's the beneficiary of short fields from turnovers and big plays by special teams. If the Rams defense plays well I think we're talking about TDs in the low 20s due to that field position advantage. Yards will be low relatively speaking but that's ok, because he's not gonna be alone.