It actually is when you factor in mpg.
Per 36 minutes:
Ball: 11.2 ppg, 7.1 apg, 6.9 rpg
Fultz: 13.5 ppg, 5.9 apg, 6.0 rpg
He essentially gets an extra rebound per 36 minutes and creates the same value combining ppg and apg.
Except neither player actually plays 36mpg.
Nice try.