Well, I don't know about love-letter. I mean, it's clearly written by a man who has deep respect and awe for this enigma of a man.
Consider the many writings from devotees about the various gurus and sages of the times and this is nothing. Or even in our western parts, let a deep admirer of Nietzsche write about him and it will surely sound sweet (or even so - read Nietzsche's own salute to Schopenhauer in Untimely Meditations, a beautiful love-letter indeed - even though the admiration changed later).
...his belief that UG had no agenda (I do not believe this for a second), the author is himself confused about the core issue involved. For example, he writes:
"There is no way to escape this illusion. Any bit of consciousness that "I have" about anything is automatically accompanied by the sense of the I. Events in nature (the sun shining in the sky, this noise there, this car passing) do not just happen: they happen to me. Ideas, emotions, desires, that "I have" do not just happen: "I have" them, "I think them". This is where U.G.is different from the rest of us: the "software" of the general idea of the self has been erased in him. "He" does not exist. Only the mind-body unit labeled U.G. exists."
If there is no way to escape the illusion (of self), then why does he imagine that UG escaped it?
This contradiction goes to the heart of UG's teachings and goes a long way to explaining why I think his teachings are disingenuous.
I don't think he thought UG consciously escaped it by a certain method - more that it happened when the escape stopped. Not as another trick, another jump to reach a certain goal, but as a pure and honest stop, full-stop, a giving-up in its purest form. When the running that never occurred finally ended, lightning hit.
When there is no separate sense of self (the illusion) there is only events in nature. I think the article clarify this well. The difference between a person with a strong identification principle and one without is then uninterrupted events in nature. No ponderer, no one to build rational structures, no one who feels different emotions - only emotions, thoughts & actions - blowing like wind through an empty corridor. There is no shadow-effect, it seems. No charcoal of the present that smudges into distorted lines interpreted as past and future. Instead it seems to function more harmonically - quick and clear lines that rapidly dissolves.
This seems to be the crucial differences, and from my study of U.G. he seems to function in this way.
Further, as the article explains - the mechanics of personality, language and idiosyncrasy is still there, being an inseparable mold from the body/mind itself. But the main illusion, the thickest smoke - the constant thinker of past and future - seems to be gone.
And by saying that there is no escape from it, well, by this I myself see it as just that. Don't escape, but dive in (even though this seems like an escapist action it is actually very natural and simple, like hearing when a guitar is tuned from when its not).
This is where Nisargadatta takes over so wisely - he is much more practical in this sense, inspiring one to sink into the deepest, subjective, part of oneself. Into the root-illusion, the vibrant silence that emits all notes. The knot of all knots. This is for me is true rationality. To go into that cave where the first illusion dwells, to taste it, until it no longer gives out nourishment.