Wait - you said this was sent to the CO's? Not the normal elders? Would they be aware of the position on this?
The CO's generally share the substance of letters like this with elders as needed.
When I was approached by the elders after I had stepped down and was in the midst of my fade, they asked me what was wrong. I told them "I don't want to get into it" and would not budge from that. It worked - they left me alone. Well, until I sent out my letter ;-)