But none of that has to do with mediation, subordinate or otherwise...Trying to connect this sub-mediation to Christianity is nothing more than more human philosophy...
The bible says there is ONE and only ONE mediator...A person ought to work from that premise instead of trying to jump thru hoops to create something unbiblical that would justify his/her religion...
I think your conclusion will appeal most to those who have a strictly minimalist view of what it means to be a member of the Body of Christ.