You are saying a lot there of which I think I will defer for moment to others to comment on, and I have not read the article, but:
The idea of "detachment" is about as negative and destructive idea toward human life as any I can imagine. Sort of life what was said in the ancient world about the Christians - if you hate this life so much why don't you end yours?
This is where Nietzsche's ""fraud of words"' passage is so directly on point. The Stoics do not want to "follow" Nature - they want to assert their own superiority over nature and tell nature what to do - what to value. And that is indeed well described as "fraud."
Beyond Good And Evil, (Gutenberg edition, translated by Helen Zimmern) Chapter 1, section 9
You desire to LIVE “according to Nature”? Oh, you noble Stoics, what fraud of words! Imagine to yourselves a being like Nature, boundlessly extravagant, boundlessly indifferent, without purpose or consideration, without pity or justice, at once fruitful and barren and uncertain: imagine to yourselves INDIFFERENCE as a power—how COULD you live in accordance with such indifference? To live—is not that just endeavouring to be otherwise than this Nature? Is not living valuing, preferring, being unjust, being limited, endeavouring to be different? And granted that your imperative, “living according to Nature,” means actually the same as “living according to life”—how could you do DIFFERENTLY? Why should you make a principle out of what you yourselves are, and must be? In reality, however, it is quite otherwise with you: while you pretend to read with rapture the canon of your law in Nature, you want something quite the contrary, you extraordinary stage-players and self-deluders! In your pride you wish to dictate your morals and ideals to Nature, to Nature herself, and to incorporate them therein; you insist that it shall be Nature “according to the Stoa,” and would like everything to be made after your own image, as a vast, eternal glorification and generalism of Stoicism! With all your love for truth, you have forced yourselves so long, so persistently, and with such hypnotic rigidity to see Nature FALSELY, that is to say, Stoically, that you are no longer able to see it otherwise—and to crown all, some unfathomable superciliousness gives you the Bedlamite hope that BECAUSE you are able to tyrannize over yourselves—Stoicism is self-tyranny—Nature will also allow herself to be tyrannized over: is not the Stoic a PART of Nature?… But this is an old and everlasting story: what happened in old times with the Stoics still happens today, as soon as ever a philosophy begins to believe in itself. It always creates the world in its own image; it cannot do otherwise; philosophy is this tyrannical impulse itself, the most spiritual Will to Power, the will to “creation of the world,” the will to the causa prima.