So here goes
Lets say your son calls during fall ball practice and informs you that he's doing really well at the plate. Basically any FB over the plate is drilled but struggling a little with off speed. To the point in live pitching drills he's not seeing any FB's and not a lot over the plate period. You question whether your kid may not want to admit he's struggling but then stats are made available and no doubt he's taking care of business at the plate. So now after a few days of spring practice kid calls upset that during live pitching drills nothing is thrown over the plate to hit. Again you wonder if excuses are being made but then Hudl vid is made available. Out of maybe 30 pitches from 4 different pitchers 4 pitches are no doubt strikes. The other 26 pitches are a combination of mostly CB's, CU's, and sliders off the plate or low. Robo strike zone none are strikes, ump maybe 10 are K's but unhittable.
It stand to reason that a pitcher is going to go after a batters weakness. It also stands to reason that walks don't matter in BP. You could argue that once scouting reports are compiled other teams will throw to a batters weakness, get use to it. On the other hand now walks matter. All that aside I would ask, does throwing around your teammate in BP prepare him for the season?