Sarcasm is the lowest form of wit...
There's no confusion at all from what I can see. The Govt seem to at least understand the impact these restrictions are having and are trying to turn us back towards normality. The advice is "use your noodle", be sensible, common sense applies. People aren't stupid. There seem to be some however who need to be led around by the hand with a War And Peace-sized rule book to go by. The devolved administrations are being more cautious and don't want to lift anything just yet. That's their call. Again, no confusion, its crystal clear to me, whether I agree with it or not.
Maintenance flights are permitted as per the CAA advice, but ask yourself the questions - does it absolutely need to be done now or can it wait, in getting to/from the airfield/maint base do I put others/myself at risk, are the airfields/maint organisation open, etc. Personally I'd rather wait to be sure but that's just me.