Excellent question. I believe it is possible that they are not bothered by it, in the following way.
As the saying goes, "The best offence is a good defence" and I think this applies here. If "bad news" is given to a few devout bethelites by their highly respected senior Bethilite Overseers, as prep for their work as "monitors" then they can be fed them information (with suitable "spin") in a fashion that causes them to accept it as non-damning.
This is the way most cults deliver information, in a graduated method. Think about it: when JWs go door-knocking, they don't say "If you join us you won't get to enjoy most of the family celebrations you have now (Xmas, birthdays, etc.). If they said that right up front, they would win even fewer converts than they get now.
Rather, they feed them the "happy paradise" nonsense and get them hooked. Only after they have established a level of authrity over the study is it safe to slowly reveal the nastier stuff, with all the "spin" and double-talk to make it seem palatable to the unsuspecting person.
This works for "newly interested" ones, I suspect it probably also works for the really damning stuff (UN, dates, Mexico vs. Malawi, etc) when fed to devout bethelites who are being given a "special assignment" to protect "Jehovah's name from slander".
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