Because they suddenly go from throwing off a mound from a set position to having to field a ball and rush (often) a throw off of flat ground. It's a much different feeling and not always easy to do on the fly.
It's likely why Ashby whips the ball to first. I always found it easier to set myself if I had time and throw it hard like when I'm playing catch.
I actually think it's kind of funny how they are praising our ability to do the little things, make contact, etc., when we struck out a ton and only scored two runs.
While I'll probably croak if this happens, I would be happy winning every game 2-1.
I'd have to watch it again (and I don't feel like it), but that pickoff was a balk. On the final replay they showed, the pitcher pretty clearly stepped toward home plate. Going by the 45-degree rule, he was way more than 45 degrees.
Next year should be wild. The leap he made in becoming a "pitcher" this year was already crazy. Now imagine him making his non-fastballs better and having confidence to throw them more.
Seems obvious (to me) that hitters are fouling more off because while his fastball is amazing, it's still just a fastball and pros can catch up to them if they know they are coming. Hone those other pitches and it's GOAT time.