So moon made me look up the CERA spreads for Sale, Price, Porcello and Eovaldi.
Sale
With Leon 435.2 IP 2.79 ERA .578 OPSa
With Vaz 132.1 IP 4.08 ERA .752 OPSa
Price
With Leon 203.2 IP 2.96 ERA .647 OPSa
With Vaz 360.1 IP 4.27 ERA .738 OPSa
Porcello
With Leon 576.1 IP 4.19 ERA .728 OPSa
With Vaz 210.2 IP 4.96 ERA .794 OPSa
Eovaldi
With Plawecki 183.1 IP 3.39 ERA .684 OPSa
With Vaz 176.1 IP 4.64 ERA .789 OPSa
Sure there's some statistical noise in there, but the differences are big enough that IMO, it would be incredibly dumb to dismiss them.