I'm sorry, but I feel that this is a very sad day for Civvy ATC, and will only lead to less coordination being carried out for reasons previously stated.
Perhaps I'm being too cynical, but I feel that the units chosen to take part in the trail were picked to get the desired result, not to prove which system is the more practical.
Also what does the gobbledygook in paras 6.1 (in particular the last sentence) and para 6.2 mean?
RAC/OPS, I'm with you in your example. In fact I think a Civvy controller would not even make the phone call for the following reasons:-
1. If the traffic was not squawking you would not know who to coordinate with.
2. If it was squawking mode A only it could be deemed at or below FL100.
3. With mode A and C you would clearly have more than enough vertical.
4. FL210 is now in controlled airspace, so is again deemed separated from traffic outside
.
Standby for more FISs being left on 7000 squawks.