Really nit-picky here, but he’s a bit deep on the back leg bend after hand separation and his hips don’t get optimally forward at the top of his lift. His front knee bend is also a bit deep as he comes off the rubber toward the plate.
That being said, he still really gets off his back side strongly enough to get over his stride leg through release and follow through. It looks really good.
The only reason why I mention these things at all is because you are looking for more accuracy. More flex and bend makes it harder to repeat within an acceptable deviation for a movement pattern. Can some pitchers do it?
Absolutely, but these are the the exceptional athletes. Most of us are not exceptional. Consistency in location is based upon how much deviation there is from a perfect movement pattern.
Less flexing and bending of knees can reduce this deviation and allow the results to be more consistent.