I'm guessing that Alcides is basically just a skinny little twerp that doesn't hit the ball hard.
xBABIP is (probably) just based on LD%, GB%, FB%, IFH%, HR/FB%, IFFB%. If you hit a lot of girly line drives, xBABIP will give you too much credit.
What we need here is ball speed off the bat splits. Mean LD speed would be a neat thing to use. I know that hittracker website has speed off the bat data for home runs..