This is a good point and it is further noteworthy that this is an agreement between the Europeans and the Americans. Or almost. The US is allowing this to continue until the agreement is finalized and then will seek to grandfather in those names set up prior to March 2006.

I think that a fair solution is the simple addition in fairly small letters somewhere on the front or back label of something to the effect that "This is a XXXX style wine and not a wine of XXXX origin". This would seem to pacify the European wine of specific place of origin issue and the Yank's very real issue with wanting to market their products.