That was a fastball off the inside corner. Acuna clearly has confidence in his eye at this point so he took a ball, even though it was called a strike. Calling that a bad AB is stupid.
When Acuna faces premium velocity pitchers you can still see he clearly has problems with it at times. He missed a pitch down the middle that was 95 in that at bat. It's not as big of a problem as it was before he lowered his hands, but you can still see it.
That was a fastball off the inside corner. Acuna clearly has confidence in his eye at this point so he took a ball, even though it was called a strike. Calling that a bad AB is stupid.