For anyone from the London area or beyond coming in a slow and or wide MV and used to doing the M25, M26, M20, then A20, the route across country to avoid M20/A20 looks quite slow and torturous.
As for those on the other side of the channel I presume the queues at un-blockaded ports are getting quite long too!
Shame on a certain '28 Country group of nations' for saying that Eurotunnel could not own a couple of Ferries too!