What Am I Missing?

[argodad]

Perusing the November issue of Referee magazine, I took a look at the softball Case Plays.

In the second one, F1 commits an illegal pitch and R1 then leaves first "just before the pitch is released." Jay Miner's answer is that you basically ignore the leaving early and enforce the IP. (If the batter puts the ball in play, the OC gets to choose the play or the penalty, plus any other enforcements, depending on the code).

I think that as soon as the BU sees R1 leaving early and says, "No Pitch!" then any further action is moot. Ball on the batter and all runners advance one base.

Am i missing something?