What you have to realise is that the law/decrees are deliberately framed in such a way that the comeback is directed at those supposedly carrying out those orders, not the politicians who tell them to enforce 'something'/'anything'!IMO the law has been written to be as flexible as possible, specifically because the govt. did not want to create a scenario where people were being fined for acceptable activities. As with lockdown 1, the list of reasons a person may leave their home is not exhaustive. Did the drafter screw up? No, they wrote it to give examples. 2 people driving 5 miles to go for a walk is within the rules. Plod should have given advice at best. Even with the massive increase in infections people still need to take care of their mental health and fitness.
The rules say I can meat a different person for exercise every day. But I should not go around the same persons house for a coffee. I suspect I am more at risk of spreading the virus meeting different people every day than meeting one person in their house.
This police force seems to consistently get it wrong.
"I was only following the vague orders guv that I got yesterday"
"Which were different from the vague orders from the day before, and I'll review the vague orders that will change again tomorrow" !