Richard Stallman himself owned up to the fact that in what we assume was an oversite forgot to include 8 files needed to make recent versions of EMACS compliant with the GPL. So should you stop using it now? Probably not unless you are running the most bleeding edge versions of EMACS. Which probably isn't going to be in your favorite distributions repository for just this type of reason. They probably have already updated the files though we haven't verified it.