Tom,
I see no problem with WMUK responding, as a charity we can engage in these areas of government policy development as they affect our open knowledge mission directly.
Perhaps (if we can squeeze it in to the day) this would be a good topic to encourage discussion on at the next London wikimeet, or at least canvass for interested names to help with discussing and writing up a response?
Cheers, Fae -- http://enwp.org/user_talk:fae Guide to email tags: http://j.mp/faetags