Giving the Welsh - or rather, giving a bunch of deluded health fascists who earn their wedge by parasiting on Welsh taxes - control of their own Health Service is, overall, a good thing. Good for Localism, good for experimental democracy in the UK, good for the rest of us. Though not perhaps very good for the Welsh. The Labour controlled lunatics have already closed down half of Welsh A&E provision in favour of spending the money on healthy eating advisers and smoking cessation workshops. So now if you get glassed in Neath on a Saturday night you get a leaflet about carrots rather than an ambulance. And now of course they want a total ban on e-cigarettes in public on the grounds that this makes smoking real cigarettes normative behaviour.
You see, it won't take that many Welshmen bleeding to death in the streets clutching leaflets about carrots before they look across the border at English practice and ask whether sewing people up wouldn't be a better use of their taxes in their own nation. And the e-cig thing will prove likewise when it becomes clear that kids in ban-free Shrewsbury are no more likely to grow to be smokers than those across the border in Welshpool.
Remember the Welsh also had a thing about alcohol prohibition; decades of restrictive drinking laws didn't produce a mililitre of sobriety more than in permissive England. So let them get on with it; they'll either vote the fools out, or live with the misery.