This is a false belief.
The Giants had a bad OL and two injured RBs so the run production suffered. They did not intentionally devalue the run game. The passing game was forced to pick up the slack.
The Giants GM and Coaches all pre-season in interview after interview all stated that improving the run game was a major concern.

Not doing something well doesn’t mean its devalued. The Giants would rather have a strong running game to have shorter 3rd downs… they compensated by making more long 3rd down passes than any other team.
But they struggle in the red zone – as shown in the Tampa game. Without the strong running game, shorter fields means its tougher to throw for the TD as play action gets bitten on less.