EC UK only have the EC type maintenance until the results of the current tender process to decide who will run the support from April 1, 2014.
With the untimely demise of South Yorkshire and the long term actuality of use of EC UK engineers by Devon & Cornwall it was [probably] decided to clear the decks prior to the new order whatever that brings.
Perhaps the argument here should shift to which organisation can provide maintenance for both the MD and EC or whether it will have to be split by make and then who can do the deed as well as PAS and ECUK? In each case I guess spares will have to arrive via Oxford or Staverton.... with little option.
I do not know which is best but PAS and EC UK will be the benchmarks.