I call JO girls fastpitch, some of the team are very young, so that perspective frames my thinking.
Applying ASA 10-6-C is an umpire's judgment. Certainly, for men's A, a valid judgment would be that the umpire's erroneous call did NOT place them in jeopardy, they just didn't execute properly.
Add to this the judgment expressed by Don that "it was very evident even though this was Men's A ball that they did not know they had to advance so
with or without the PU call I feel the runners would have not advanced ..."
Umpire's judgment - call of BALL GAME had no bearing on the actions of the runners. Clearly, then, allow the appeal.
Do the same thing with a team of 10U girls, with coaches who are also learning, then I stand by my judgment that applying 10-6-C is correct.
Of course, that begs the question: who in these two 10U teams would know they could even appeal this?