Per your numbers his EV is down, hard hit % down, barrel % down, LA down, BABIP down (BABIP isn't only a product of luck), AVG down, SLG down, wRC+ down.
What the metrics don't show is a hitter clearly frustrated at the plate. Resting a cold and frustrated hitter for a mental reset for a couple days isn't likely going to hurt the team. Agree to disagree.