It might be political speech, but it's also childish.
What is it intended to accomplish? What is the actual statement being made, and who is the intended audience? Not the government - they already know what PRISM is. Also not the common internet user. If it had the potential to be effective at influencing or censoring political dialogue, I would be upset at the attempt to bake propaganda (however sympathetic the tech community might be to it) into what should be a politically neutral protocol. But it does seem more like a prank than anything else.
What is it intended to accomplish? What is the actual statement being made, and who is the intended audience? Not the government - they already know what PRISM is. Also not the common internet user. If it had the potential to be effective at influencing or censoring political dialogue, I would be upset at the attempt to bake propaganda (however sympathetic the tech community might be to it) into what should be a politically neutral protocol. But it does seem more like a prank than anything else.