That's not what arbitration is. This doesn't stop valve from reaching a settlement, it stops them from using fake privately funded bench trials

Binding arbitration means the results are legally binding, non-binding arbitration means a judge needs to approve the arbitration results before it's final. Sometimes it's with an off duty judge, sometimes anyone can be the arbiter

Regardless, on one side you have a repeat customer, on the other you have someone who will probably never be back - there's a built in conflict of interest