The problem I see here is that folks like IO540 see the PPL training as the be all. When in fact it is just a basic licence to teach you how to fly from A to B and not kill yourself.
In the same way, a CPL doesn't in anyway prepare you for a life in the airlines. So we do type ratings and line training, to compensate for it. A CPL is just a basic minimum requirement. It shows you have reached a standard, so that you can continue to learn and get better.
Basic licences are only the start of your training though. If you want to do something more advanced, then get further training. This however is the area the PPL training industry falls down massively, there isn't much around for more advanced training, though there isn't an enormous call for it either since people who fly like IO540 are very much thin on the ground in the PPL world.
I wish there were more like him though!