Well, that is down to Bombardier (said the french way and not the english way) and NOT the British government.
The media coverage of this is utterly terrible, as WestCoast has pointed out, I guess no-one remembers the trains where they have actually collaborated together? How about the new ICx? Siemens trains, eco-flex bogies.
I really couldn't care about some pseudo british jobs. Whoever makes the train will HAVE to create jobs here anyway (maintenance, fitting out etc) but as most people have said here, for siemens, it will be mostly in the supply chain, spreading jobs out amongst the country, rather than focus on one factory in Derby. I think that is a much better option.
Plus, the elephant in the room, I HATE EVERY SINGLE BOMBARDIER TRAIN I HAVE EVER TRAVELLED ON, EVERY....SINGLE.....ONE.
Voyager/electros/turbos all terrible trains in comparison to siemens IMO.
Voyager vs ICE-T/TD
Electros vs Desiros
Turbos vs German 642's
Honestly, no contest in my view