More specificly its saying "the previous statement i just made is not me saying i am giving you a patent license. However i'm not saying in general whether or not i am going to give you one, and i might be giving you one in some other statement."

There is of course a certain sense where not rendering an opinion is the same as the supporting the status quo ante (which would be no patent license), but i dont think its fair to equate an implicit no opinion = no patent license with an explicit no patent license.