Hoskins has a very good eye, he's just not at the point where he gets the call, the umpire blew it.
Hoskins is making adjustments, he hit another one just foul down the RF line, pitchers have been pounding him inside with FBs and outside with breaking stuff, he's learning to keep his hands back and take that ball to RF - once he figures it out, look for multiple xBH games where he deposits a few into the RF corner or the stands, then turns on an inside FB for a long, long HR.
It's obvious they're stressing that with the power hitters, Alfaro and Franco have hit more balls to the opposite field than I think they had all last season.