A small correction Justicair - VLA category aeroplanes can be "certified" by every standard you might wish to apply, they can be used for training, hire, tourist flights
Sorry, yes I was aware of the Restricted Type Certificate, which I believe means that you can fit uncertified parts and still use it for training. This could be said to be a step forward in a rather bleak landscape of regulation, but I have not seen any figures as to what the likely annual maintenance costs of an aircraft of a restricted certificate are.
It does make you ask what the EASA rationale is for this if it is not to put clear water betwen "sports" aviation on the one hand and commercial operations on the other. What they appear very uncomfortable with is having a class of aircraft which overlap the two categories of operation. A lot of the root problemis with the categorisation of what is and is not an EASA aircraft.