Hi nonjwspouse, I would guess that most JWs do not realize that according to the Watchtower's latest publications Jesus Christ is the mediator for annointed Christians and therefore would not be the mediator for most R&F, who are not annointed. Because of the WTBTS's flip flopping, this can be confusing for JWs and not-JWs.
I do know that when two JWs confronted me while I was picking up Memorial invitations after they left them jammed in doors and under door mats in my posted non-soliciting townhome community, they did not realize that Jesus Christ was not their mediator according to the WTBTS. I even advised them to read the Watchtower more carefully to learn that the GB was their mediator and not Jesus Christ.
Asking a JW who is their mediator with God, could cause them to do usually mental/emotional gymnastics.
Peace be with you and everyone, who you love,
Robert