And where did you say this was assumed by someone else, exactly? Your words were:
There's no seeming or assuming about it - the Government announcement was very clear at the time it was made.
Oxford and Bristol Temple Meads deferred, Cardiff-Swansea cancelled. End of story.
Similarly, any prospect of 365s being used between Paddington and Oxford or anywhere on GW went out of the window when GWR did its sums and made the decision two years that it would rather have an all-new fleet of 387s and some more IETs than a mix of ageing 319s and 365s.
And TfL has a lot of Class 345s that it wants to put to work, despite the delay to Crossrail, if any more emus are needed in the Thames Valley - see the Class 769 thread.
https://www.railforums.co.uk/thread...om-319s-initially-for-northern.138660/page-69