All you can ask players to do is take the right approach, improve the approach if it isn't working, and hope the results reward the process. No one, not with advanced stats, eye test, or anything else in the history of baseball is going to bad mouth a player who is stinging the ball all over and just having bad luck.
The advanced stats aren't perfect, they just try to identify players that are doing things right, even if the results haven't shown it yet. Or, vice versa, guys who have results that look unsustainable. Reality often vindicates those conclusions over time.
Some of the posts in this thread to the contrary....woof. If you don't understand it, just ignore it and steer clear of it. Opening your mouth to admit just how poorly you understand it is a bad look.