They know that, and that's not why they did it.
The state knows this. They are always trying to use their powers against individuals in a way that won't anger the aggregate.
They will slowly expand this blacklist over time, never enforcing the rule, until ...
With a large enough blacklist they can use chain analysis to find a link, and suddenly they're able to add OFAC violations and label him or her as "supporting enemies abroad."
We scoff at their seemingly-impotent rules at our own risk. Just because Bitcoiners can envision a future without nation-states doesn't mean that they don't currently have enormous power.