William will be head-of-state for far longer than Torpy's tenure as CAS. As head-of-state William will have more direct access to those politicians who will determine the future of the RAF than Torpy and his successors could ever dream about.
Prior to this course William's knowledge of the roles and capabilities of the RAF will have been almost entirely based on what he will have picked-up from the Army. The RAF may one day need William to apply some behind-the-scenes influence on his government. I would suggest that not making any effort to offset some of the opinions that he will have been exposed to in the Army would be unwise.
Conversely, if CAS is not already sufficiently knowledgeable to command a force that includes C-130s without actually learning to fly them himself, then the RAF needs to re-examine how they educate their senior officers. Familiarization on genuinely representative sorties may improve his understanding of capabilities, but actually "qualifying" on the aircraft is surely just a stunt?
His Air-ship will perform a few circuits in the LHS and then probably fly as "captain" to AKT for the benefit of RAF news - proving what exactly? He will find it all very smooth and easy, and the GPU in Cyprus will probably even work first time. He won't get anywhere near experiencing the ball-ache of seemingly pushing everyone else to make the task work, followed by the fatigue of operating back-to-back long haul flights, culminating in trying to remain alert over the London TMA.
William had the hours allocated and they were flown-off in a useful manner, with a bit of fun-factor thrown-in. I thought that was the sort of RAF that we all wanted to be part of. The ne'er sayers should be aware that they are adding to the tone that will see useful activities being stopped because someone with very little knowledge perceives that they might be portrayed as "having fun" on the public purse. Ski-champs anyone?