Witness My Fury, your link was exactly what I was after.
It's a trivial point to anyone not interested in the rich history of the WTS around the time of Russell's death, but actually quite important in underlining the level of deceit and manipulation Rutherford used to seize and maintain control of the society despite the wishes of the majority of the board of directors -- in effect, the governing body. The issue here is whether the four directors who were getting fed up with Rutherford opposed the publication of The Finished Mystery, as the Proclaimers book states. Rutherford in this court case explains how no one outside the executive committee, in fact, knew of its publication.
From that transcript (pg 981):
(During direct examination of Rutherford)
Q: And I think he said something as to the purpose in concealing the fact that the seventh volume of The Finished Mystery was going to be published. What is the fact in reference to that?
A: No purpose in the world to conceal the fact that it was going to be published. The reason of it was this. We had considerable difficulty at that time in our society.
Q: Was that difficulty over The Finished Mystery?
A: It was not. Did not include The Finished Mystery in the slightest.
Q: The Finished Mystery at that time had not become the subject of any discussion among any of the members?
A: No sir, had not discussed it with a single person in the society at the time this trouble started.
On pg 982 he explains the lengths he went to to ensure all members of the society received the book in the mail the same day.
On page 1037:
"The four mentioned here had been disgruntled about other matters, they had nothing with reference to the seventh volume. The matter was never intimated."
(He then explains from p. 1038 how the four "disgruntled" directors had tied up society funds, insisting they have approval over disbursements. When a $5000 cheque was received from a Mr Butterfield for the publication of the book, Rutherford banked it in his own account rather than the society's, to ensure the directors could not stop the publication of the book.)
What's clear from Rutherford's testimony is that the four opposing directors -- a majority of the board of directors -- were apparently unaware of the impending publication of the book. Hence the WTS glee that its release on July 17 was a "bombshell". Hence not only is the Proclaimers statement clearly a lie, but Rutherford patently defied the wishes of the governing body as it was then, pushing ahead with his own agenda, fuelled by ego, vanity and a naked belief that he was God's chosen man.