Actually it not really that, its the stupidity and selfishness of the fans - Those going to seaford will not board a Lewes only or Eastbourne trains and vice versa meaning the platform remains half full of fans so those waiting cannot get on the platform.
That will be a nightmare for East Sussex fans and those who think longer trains will be the answer are wrong as its not the length of the train that causes delays on the Lewes bound side.
I didn't mention whether they were legal or not but still I'm sure everybody who says they are perfectly ok will be happy to drive in this weather with 100% reliance that they will do their job when they need to the most, but anyway he said they have been replaced.