I've never heard of the UKNDA (and, no, I don't live in a cave somewhere).
BUT, looking at the line-up of the 'personalities' leading the cause, I do get the uneasy feeling of yet another 'Retired Gentleman's/Politician's/Senior Officers Luncheon Club' filling in the hour's between the odd Board Meeting, game of golf, cricket at Lords and Glyndebourne.
No disrespect to any of them (and more power to their elbow's if they mean business) but action is noticed. Inaction isn't.
I haven't noticed anything.