Pitts, EASA Airworthiness and CAA flight ops have different outcomes because they have different remits.
EASA are concerned with the fundamental airworthiness of aircraft. Airworthiness is the same regardless of the type of flying operation conducted. The same rules apply to private owners as to airlines. I don't think it is within EASA airworthiness' remit to for example ground an aircraft for commercial air transport but not for private flight.
CAA flight ops are all about use of the a/c for commercial air transport and they currently consider the risk of operating the 225 over hostile terrain with pax too great.
Yes however the CAA is a national body so why leave it to individual members to do something different and then why would they move away from the decision of EASA?
But don't forget that the operators and our customers decided to stop 225 flights before CAA came out with their edict, so UK CAA is not the primary reason why we are not flying.
Which isn't a ringing endorsement for EC, EASA or indeed the CAA..