Health,
To arbitrate something like custody Children it is very reasonable to only wish to do so in a system that has some sort of oversight and recourse if someone believes they are the victim of judicial misconduct. Not so with the writing of a get.
As far as forcing a women to arbitrate in a B”D if the only way she can receive a get is by arbitrating everything in a B”D if that is what the B”D wants – and they just about always do the women is in effect forced to arbitrate everything in B”D wether she wishes to or not