Until there is more media coverage of the actual workings of the regional assemblies in the main news of the day, t(and of the european parliament, other than a once in a blue moon way)
the nationalist right will be able to sell this as a layer of beuracracy as the only encounter that the average person will have with these assemblies is through the steady dripping of poison through the right wing press. Britain would have a far more positive attitude to European institutions, if there were five minutes per night set aside for covering the european parliament. (And lets face it it would be time far better spent than discussing the share prices) However this is not in the interests of politicians at Westminster, as they need to be seen to be out there doing their jobs. Any idiot can face a crisis - it's day to day living that wears you out.