That's probably because you didn't read past the 3-4 first paragraphs where the brief description of a (historical) "sovereign citizen" religious sect ends.
The rest of the text (and I would say even that part) is totally unambiguous, and offers nothing to be mistaken for "parody" of any kind.
I read through the whole chapter and I didn't see anything sovereign citizen-esque in there. It's an analysis of the modern employer-employee relationship.
I agree, just read the first 5 or so comments on this thread and it is almost as if no one even read this post which by the way was an invigorating read. Great argument of contractors vs employee from an employer and economist stance.
In summary what I got from it is that if you really want your staff to "be there" for you then an employee is the way to go. If you want to save money and have talent, go the contractor route.
This is written by Taleb, he is an interesting fellow and I find his thoughts valuable. Recently he made +$1B in a single day with his hedge fund by evaluating risk vs reward with unconventional methods.
Taleb also publicly disaffiliated himself from the trades.
The whole thing is either the hedge fund Trying to capitalize on the PR... Or lazy sensational wsj journalism.