It looks like DraftKings with full PPR scoring. Stewart has added 7.01 points for his team in terms of Reception NEP, and no other back in Carolina comes close to that.

Not to mention, the matchup is also advantageous for Stewart, as the New Orleans Saints rank 28th against running backs in fantasy points and rank last in the league in Adjusted Defensive Rushing NEP. The volume and matchup are both there, which is exactly what you want with a punt play.