Having done a four years of AXs and then a couple of QDEs last year, I cannot imagine allowing AX drivers with no DE experience to be passing on the track unless they had an instructor in each car.
Even with an instructor, remembering which areas are legal passing zones, doing the hand signals right, understanding the hand signals from the car being overtaken, etc., is a lot of new stuff while the adrenaline level is pretty high.
At my first QDE, there was even confusion among the experienced DE/TT drivers as to which areas were legal passing zones and some passes occurred in a non-legal area.
Having AX'ers with no prior DE experience doing any passing without an instructor sounds like an excellent opportunity for incidents.