I like the GPL and think its "virality" is both clever and a worthwhile social goal, but I think it's misleading to call it "free". It directly restricts possible usage of the software in question -- yes, in a way that's designed to increase another kind of freedom, but it restricts nonetheless.

FWIW I have the same quarrel with people who talk about a country being "free". To my mind, a truly free country would have no laws. It would be a horrible place, because the restrictions that laws place on us tend to make things better for everyone (we may disagree on this law or that law, but some laws, like "Don't kill someone without a very good reason", would have >99% popular support anywhere in the world).

"More free" does not necessarily imply "better"; it could be better or worse. I'd like to shift usage of the words "free" and "freedom" in this direction, but think it's probably a lost cause as the words are too emotionally charged with connotations of "good".