no, he's being hyperbolic to make the point that in an extreme situation, a default-deny approach could facilitate mass suppression of 'undesirable' traffic without creating an insurmountable backlog of traffic for the 'bad actor state' to review in determining what to process further.
Only it doesn't, because as soon as they allow anything, everything else starts to look enough like whatever is still allowed to make it through, because that's the only way to make it through.
Slashing away more things only increases the resources people will put behind making arbitrary traffic look like allowed traffic. It trades not having to review everything for having to fight everyone instead of only the people they want to block.
Then some people win, everyone copies the winners' methods to get through, and you're back to square one only now everything looks even more like everything else than it did before.