I don't think harmonization of regulations is necessarily a bad thing provide it's kept simple and sensible.
If there was any doubt that the European bureaucrats are out of control, evidence was provided recently when they attempted to ban restaurants from serving olive oil in open dishes saying that they must use individual sealed containers. The olive oil thing was quashed by several nations refusing to comply but how many millions of Euros did they waste with such nonsense. That's the problem with bureaucrats, they can't be trusted to be sensible.