I have to say I read your post and the words attributed to M Barnier and laughed, although it was a weary resigned laugh as it shows the naivety of so many politicians who just pander to their perceived voters/audience.
He identifies them as refugees yet then doesnt really do anything to give them aid, shelter or some form of comfort.
Just a case of move them on ASAP.
Whilst the PAF may well police the Calais/Juxtaposed area, they are helping police a business and business'. Assuring no breaches of the peace and wait, they are on French soil!
Scrapping Le Touquet would cause issues as it would slightly move the problem. Instead you would end up with issues on the Eurostar as people would just need to jump on a train and arrive at Ashford or King X. I suppose it might remove alot of the need for people to head to the coast.
Again, looking for some benefit from this possible fit of pique by M Barnier, could be that it forces UK gov to think sensibly about allowing "out of country" applications at diplomatic posts. If only all governements would look at the bigger picture than simply their own back yard.