I doubt that the CAA itself is that closed minded. The problem, as I understand it, is that now we are in the dreaded JAR the CAA is, effectively, robbed of the power to take any unilateral action.
Spies inform me that opposition to the FAA type system comes from those lovers of regulation and restriction, the F****h and the G*****s.
A good example, if one was needed, of how an excessive degree of integration into the EU slowly erodes our right to do what we damn well please by depriving our own regulatory authorities of the power to take a sensible position on not just this, but many questions - FCL, abbatoirs, sausage ingredients etc.