The little I know,
Ok so let’s say a women says she wants a get but wants to Determine custody in secular court. What would happen? Would the B”D say fine and tell the husband to give a Get? Or would they compell her under the threat of not receiving a get to Arbitrate with a BD?
If someone receives a Hazmana and tells the B”D they do not want to Arbitrate in a B”D would they not be threatened with a Seruv etc.
Using the fact that someone is entrenched in a community you are part of to coerce them to work with an Arbitration system they have no interest in using is an abuse of power and force.
Furthermore you have not addressed how it is made sure that the husband does not compell his wife under threat of never receiving a get to Arbitrate in a B”D of his choice without giving her a say.