So when you say...
You're having a laugh, I was, and still am, in Milan Malpensa, I was due to fly back last Friday on the BE7114 to BHX.
it is fair to say that instead of taking the next available return to the UK with the rest of the passengers would have done you decided to stay in MXP for your own reasons. So the fact that you are still in MXP on Monday is because you chose to be so. You make it sound like the reason you are STILL in MXP is because the airline haven't repatriated you yet and have left you in MXP, which isn't really the case is it? What airlines do you think would allow you to change your ticket onto another route (presuming non flexi fare) when your flight hadn't at that point been cancelled?
Don't forget the airline will have had passengers in BHX wanting to get OUT to MXP too so they really will have tried to operate the flight and would have only cancelled it when it was 100% certain they could not do so.