Kaminetsky-Greenblatt Heter: Rav Tzadok "defends" their perversions of the Torah

update: I just modified the title of the post because some people were mistakenly taking it literally.
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As noted many times, the Kaminetsky-Greenblatt Heter is a blatant perversion of halacha. In addition it is based on lies. I have also asked many times for someone to defend not only the creation of this phony heter but also the refusal to tell the couple to separate from an adulterous relationship.

However much to my astonishment this Shabbos I was shown a clear justification for their action. Rav Tzadok is talking about a tzadik or gadol and clearly had the Kaminetsky's and Rav Greenblatt in mind when he wrote the following words. [As a side point - this Rav Tzadok was used to justify R Berland's purported sexual perversions by his son-in-law. Rav Tzadok seems to think that a real tzadik can violate any halacha and it is not considered a sin]..

Rav Tzakok HaCohen (Tzedkas HaTzadik #198 page 76): ... David violated the halacha without any justification - but just because he wanted to. And he relied simply on the fact that because he wanted to violate the halacha that this was truly G-d's Will and thus no sin was done in the violation. And this was even though there was absolutely no reason to justify it because Will is not dependent on reasons... 

שהוא עשה שלא כהלכה בלא שום טעם רק מפני שרצה בכך וסמך על מה שהוא רוצה כך הוא אמיתות רצון השם יתברך ואין בו עבירה. ואף על פי שאין בו שום טעם כי אין טעם לרצון

I am not aware of any non-Chassidic writings that state such a thing - so it might be a problem for Litvaks such as the Kaminetsky's and R Greenblatt to rely on this heter. But maybe one of their defenders can send me a non-Chassidic source that gedolim can violate the Torah anytime they want - because it is G-d's Will.