I hope you aren't implying a comic strip glossed over some details in an effort to reduce the message to a small, easily consumed and memorably sequence of events, just so they could fit within the limits of the form. I hold the medium in far to high a regard to consider that a possibility! ;)

Joking aside, I think you were primed to interpret the comic in a specific way which may not have been the intent. I don't think it was saying much about the state of surveillance using computer vision as much as it was showing the absurdity, at this point, of using a method that prevents computer vision from working but also makes you uniquely and easily identifiable. Eventually, if enough of the populace takes up a similar method of obfuscating their identity, then it's useful, as you are again anonymized as one among many, but until then you are an anonymous member of a very small group (possibly containing only you), which itself isn't very hard to identify. Not all that useful.