Pitcher A also had a MLB leading 2.47 FIP, ERA+ was 142, K/9 was 11.5 (MLB leading), and 5.4 bWAR
Pitcher B was even worse than you painted with a 3.66 FIP, 128 ERA+, K/9 was only 7.6, and 3.6 bWAR.
But obviously pitcher wins are dumb are would mostly be correlated with their team success rather than any of this.