Demanding more vague armoured vehicles was an easy cross-party response to Iraq; it got around saying whether you actually opposed the war, or what strategy you favoured. If you were on the Left, you were opposing and also supporting the troops, and that was enough. If you were on the Right, you were fighting the terrorists, and that was enough - and the program cost an absolute fortune, money that spread itself all over the military-industrial complex.
While the vast contracts worked their way through the bureaucracy, the soldiers worked out their own solution.
It's like I started to say after my month in Ramadi in 2005: the best IED armor is a sniper team.It further turns out that the Richard North-championed vehicles are essentially incapable of manoeuvring off the roads, and they are too big to be handy in the city, so the Bush era created an armoured vehicle for use in Iraq that was best suited to Richardson, Texas or Egham, Surrey.
Off road -- even on a dirt road -- you can move them maybe one or two miles per hour. Cross country they have zero ability.