Did Prabhupada sanction the post-publishing editing of his books?

From K Jayadeva Das:

Between the first release of the MacMillan edition and the year 1977 in which Srila Prabhupada disappeared there would have been many reprint of Bhagavad Gita As it is, why these changes were not incorporated at those times?

Where is the documentary evidence that Srila Prabhupada wanted those changes made to his Bhagavad Gita As it is?

Now justifying the changes is like argument between lawyers where the more powerful in arguing wins no matter what the truth is.

We don’t need sophisticated flowery language nor the best use of the English language. For us the words come out from a pure devotee is enough that will do everything required spiritually. Please leave us with the original manuscript, we don’t want the book written in your best Language.

Making changes is not the issue, but it should have been approved by the Acharya Srila Prabhupada. Now how does one know whether the changes are authorized? Leaving the decision to the readers is not acceptable, because we are not pure devotees.

The book should have been left “As it is” because even without those so called ‘corrections’ the potency of a pure devotee Srila Prabhupada’s words will never be diminished and there is no doubts that the readers’ heart will be cleansed in spite of the absence so called corrections.

If at all the changes were made, it should NOT have been marketed in the original name used by Srila Prabhupada, instead it should have been sold with Bhagavad Gita with the devotee who made the changes as the author.

Relevant quote

http://bbtedit.com/prabhupada_order_to_revise

Srila Prabhupāda knew there were mistakes in his books, and he wanted those mistakes fixed. Consider this excerpt from a class in Hawaii (January 1, 1974):