I was one of the volunteers on that. Must have been awful having road closures for 4 hours and 45 minutes. It must've been like living in 1930s Germany for the poor souls.
And only 5 month's notice before hand? What a pith take! That's no notice at all! How could they be expected to live with such unreasonable conditions? How could they plan ahead with it being dropped on them so suddenly. No wonder some of the locals took it upon themselves to ignore the closures and run over marshals.
The moaners need to MTFU and have a reality check. One guy was a vet trying to get to a customer's horse that needed emergency attention. He argued, and argued, and argued...and it was pointed out to him that he'd now spent more time arguing than it would have taken him to drive the 3/4 mile diversion...and still he argued. The moaners are a bunch of self entitled prats, the sort would rather die complaining that take minimal effort to save themselves. They're car centric idiots who would rather see their houses washed away by rising sea levels than walk half a mile for a paper and a pint of milk.
It was less than one morning in a whole year. Ample notice was given and alternative routes publicised months in advance, yet they acted so surprised when it happened. Bunch of chumps the lot of them.