This line of reason is one I find appealing but somewhat untimely. If I'm grokking the deeper message it's that "limiting licensed use in these creative ways opens the door to potentially evil chicanery" -- i.e. you start limiting licenses to non-police activities and then some corporation goes "great! now that we can do that our licenses now limit usage to only endeavors that boil your firstborn and undermine our competition".
Problem is in era de la grift we've sort of realized that they never needed permission - there's no precedent to set anymore.
Call that "deeper message" A1. He's got arguments A1 and A2, and goes "if P, then A1(P) implies C; and if ¬P, then A2(¬P) implies C; therefore C". But we can just as easily go "if ¬P, then A1(¬P) implies ¬C" (as you did); "and if P, then A2(P) implies ¬C; therefore ¬C". Logical arguments don't let you do this: the arguments are pure rhetoric.
Quite a lot of Richard Stallman's arguments are pure rhetoric, actually. And, I mean, I guess it worked, in that the GPL and FSF ended up being quite influential; but the trouble with building a philosophy on rhetoric is that people start to believe that rhetoric – including you –, and it erodes and replaces the foundations of their beliefs, so it'll all come crashing down sooner or later.
I don't really think we need to engage with the rhetoric on an intellectual level, since it's obviously wrong: far better to read philosophers whose reasoning is sound, or to come up with your own ideas.