3) The prophets never stated probabilities or assumptions.
Which reminds me of this WT gem:
1980: "With the appearance of the book Life Everlasting in Freedom of the Sons of God, and its comments as to how appropriate it would be for the millennial reign of Christ to parallel the seventh millennium of mans existence, considerable expectation was aroused regarding the year 1975. Unfortunately, however, along with such cautionary information, There were other statements published that implied that such realization of hopes by that year was more of a probability than a mere possibility. There were statements made then, and thereafter, stressing that this was only a possibility. It is to be regretted that these latter statements apparently overshadowed the cautionary ones and contributed to a buildup of the expectation already initiated....In saying anyone, the Watchtower included all disappointed ones of Jehovah's Witnesses, hence including persons having to do with the publication of the information that contributed to the buildup of hopes centered on that date. (Watchtower, March 15, 1980, p. 17-18)
The WT doesn't need "apostates" to eviscerate their false claims. They do a pretty damn good job all by themselves!!