my friend –
1) Outside of some closed communities (like KAJ in Washington Heights, Lubavitch in Crown Heights, Belz, Bobov, etc.) both the plaintiff and the defendant have the right to insist on a ZABLAH (CM 3:1, Rema)
2) Each standing Bais Din probably has its own policy on this matter. Your thoughtful recommendation/suggestion/observation only works when both sides sign the arbitration agreement. No Bais Din should ever allow one party to prevail or gain an advantage simply by “stalling.”