Satirical intent aside it's true that the way some ancient writers use particles makes it much harder to read and understand their writings, to me at least. To be clear, I'm a native Greek speaker and I can comfortably read back to at least the Koine Greek of the Gospels. But I've tried Xenophon in particular, who's mentioned in the article and I remember it being hard going, to the point I gave up and continued with the modern Greek translation (I had an edition with the ancient and modern text on opposite pages).

I distinctly remember being very confused about the spray of particles interjected between nouns and verbs, and trying to shut out the noise of the particles to be able to parse a sentence. I probably got a headache.

The problem is that, the meaning of "ενταύθα", "ουν", "ον", "γε", "δε", "ην", etc may be well known if you take them as individual words, but when you string them together they're apparently trying to say ... something. And that something is opaque and incomprehensible, like an ancient joke for which you have no context.