Conclusion.
"Does this admission of making mistakes stamp them as false prophets? Not at all, for false prophets do not admit to making mistakes." The Watchtower, October 1, 1972, p. 644.
The Watch Tower Bible and Tract Society now views itself as fallible. Quite an admission for the 'channel of Jehovah'. Indeed, they are not God's channel, and as history has proven, the Watch Tower Bible and Tract Society has been shown to be false prophets (Deut. 18:21-22).
Be aware. The Watch Tower Bible and Tract Society promotes what is referred to as the "Theocratic War Strategy" which allows lying to "non-worshippers of Jehovah" if necessary to keep them from hampering the preaching work of the members. (The Watchtower, May 1957; Insight on the Scriptures, p.245).