yes, but they go out with a really great party, hoogey!
just kidding, i really don't know about the wine.
but, it isn't the lactic acid in dairy products that does the tenderizing. current theories suggest that there's enzymes in milk that help tenderize. also, calcium may help enzymes already present in the meat become active. finally, many dairy based tenderizing marinades have other ingredients which containg tenderizing enzymes.
it's all about the enzymes, man...