Would it not be better to let these people complete their training, get their wings and then transfer them to the reserve? This way they could move into civvy street and be the first to be offered their jobs back if times improve or if hostilities break out, the RAF would still have some return for their investment.
Letting them go as they are means that they will be neither fish nor fowl and may not have sufficient hours to qualify as having completed a course of military flying training towards the issue of a CPL.
Makes me realise how lucky I was in 1964.