Funny, I was listening to "Laibachkunstderfuge" recently and thinking what a good album it is, better than a lot of their more recent, boogie-wonderland material.
I think the good socialist people of former Yugoslavia would well have shat themselves; the good socialist authorities and media certainly did. A lot of bad socialist, and other political and anti-political ideologies, may well have been delighted if not inspired.
Leaving personal misgivings about their current musical direction aside for a moment, though, I think Laibach have always mattered. Can't think of many other groups or projects from the same background who have had the same general impact that this group has. Musically, socially, idealistically, I would argue Laibach have made a huge impact and if they've earned their Champaign along the way, all the more power to them.