Binding arbitration shouldn't be a thing. If we want to go to arbitration is because we are in the same level of negotiation. One side imposing arbitration or any other kind of restriction on the mechanism that the individual or organization has to redress issues shouldn't be a thing
The counterargument is that if you don't have binding arbitration, you can be constantly worried that the other party will drive you bankrupt with frivolous legal proceedings, and that fear discourages collaboration. A binding arbitration puts that fear at ease.