My pitcher son loved it when he saw non-MLB hitters do this. Now their timing is off, they have signalled they are beaten, and the ball can't go far. Almost a sure out.Vlad jr shortening his swing with no stride approach with 2 strikes against... will technically there is a little stutter stride
Plus, I have posted before an MLB chart that shows 2 strike counts are approx .150-.200 lower BA (as I recall) (and similar slugging pct) than any other counts.