Good to see this discussion continuing.
Last weekend we had a Fire Captain and some firemen out at a climbing seminar, and we had an Aerial Rescue event set up (in accordance to ITCC rules).
We showed them what we do for the competition and then we asked them what they would most like to see if they got called to a jobsite and an injured climber was in the tree, no access for a ladder, and a capable rescuer on the ground, awaiting their orders.
The Captain told us in no uncertain terms that unless it is a spinal injury that is suspected, the best thing that could happen is that the victim is on the ground so that they can get moving to the hospital. He said that time is critical, and he also said he was impressed with the event and how smoothly the dummy was being handled, which isn't always easy in a high angle rescue.
Personally, I think it all boils down to a case by case basis, and you have to trust in your first aid and CPR training to get you by until EMTs arrive.
For the TCC, I think the event is adequate but not true to life.
SZ