Is Milliband dumbing down?

It may well be my imagination but has the leader of the Labour Party, Ed Milliband, been dumbing down his accent in recent interviews? Perhaps this is an effort to appeal to the general populace?
Given Tony Blair's overt attempt to adopt an estuary accent and present himself as a 'man of the people', I would not be at all surprised. Whilst I am no great fan of a 'cut glass' upper class accent I do prefer those that represent us to be able to pronounce their words properly.