MOD are struggling to find a role for the Mk 3 variant of the Merlin (is it SH? no, okay lets try this CSAR thing) so trust the Yanks to take a cranky British invention (a 3 engine helicopter the size of a Chinny with the lift capacity of a Wessex) and turn it around into something useful.
They're going to use it as a taxi for George Dubwa, fantastic; just like those stretched limos in NY, massive cabin for about 12 guys. Now why doesn't Blair have the same idea, 32 Sqn are looking for a replacement for their ageing Twin Squirrel VIP fleet and we've got some spare airframes looking for a role.
Simple!