The goal is not to simply revive a past arrangement but to apply certain traditional principles and spirit to a newer expression of organic principles that is suited to its context.

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In any case, "pre-Enlightenment" does not refer to any specific structure (like kangaroos), but a wide variety of arrangements. Therefore, I see it as more similar to "non-elephant" than "kangaroo".

The first quote makes it clear that you do mean something specific by "pre-Enlightenment". Not as specific as, say, "ancien régime France", but nevertheless defined as the positive possession of "certain traditional principles".

Calling any system based on principles aside from Enlightenment ones "pre-Enlightenment"

I am doing the opposite of that, as indeed your first paragraph interpreted me as doing. It appeared to me that you were using "pre-Enlightenment" and "non-Enlightenment" interchangeably, both referring to whatever is not the Enlightenment. And at the end you do claim that "pre-Enlightenment" is a non-elephant, not a kangaroo. If you like, I can analogize it to the class of marsupials, but it still isn't a non-elephant.

You, and Moldbug, and advancedatheist, and every other neoreactionary are putting forward specific views of how society should be structured, specific views which is not merely "something other than the present arrangements". There may be a range of views in the nrsphere, but their doctrines are characterised by what they want, not by what they hate. They do a lot of the hating, to be sure, but they have a positive base of reasons for that.

For example, monarchy and libertarian anarchy are incompatible with each other, and neither of them are Enlightenment structures (as "Enlightenment" is used by neoreactionaries). Are either or both of them compatible with or implied by neoreactionary principles? My reading of neoreactionaries suggests to me that monarchy is, and libertarian anarchy is not.