They use the imperfection as an excuse for their failures, telling people to give up their lives because Armageddon is tomorrow or next year. And then they blame the people when it fails and they end up in a pickle because of having followed the advice. Imperfection.
But then they tell us how important it is to follow them no matter what. If they blunder and the error is blatantly obvious or one that they have made before, they still expect us to follow them. If one person is imperfect, then someone else is going to see a mistake and be able to correct it, not following the errant instruction, and avoiding calamity. Just try it with the Puketower Society. You will get disfellowshipped for not following the slave class.
Worse is that these are no mere imperfection errors. Were it imperfection only, they would only have been wrong part of the time. It seems they are wrong every single time, and that they are keeping people's lives on hold with their stupid little games. This is a full blown scam, meant to get people to live stagnant lives and to take advantage of them to get still others to join the scam. That's why they need the instruction that it is so important to follow the Slave Class all the time, no matter what. They hammered that in this past summer at the a$$embly, and they are hammering it in again by not allowing independent research and cross-referencing of the Bible publications and the Bible itself. And then they chalk it up to imperfection. This is nothing but a specious reasoning to get people to follow the cult at all times and not question when it messes up their lives.