Try looking at his stats before 2017. You'll reach the exact opposite conclusion.Imagine how good he could be if he would just hit from the left side all the time. Why do guys insist on being a switch hitter when their numbers are so much worse from one side?
His career batting average as a righty is 40 points higher than as a lefty.
You're focused on an 85 plate appearance sample size in 2017. That's like 2 weeks worth of games. It's meaningless.