The simple answer to this question is DOUBT.
Crisis of Conscience lead me to believe that the Society knew that their 607 BCE chronology was wrong. I wrote to them asking two simple questions and requesting YES or NO answers.
Despite more than one attempt by me,they absolutely refused to give yes or no answers but went off into reims of explanation that left me with no answers. This meant that at a later date they could not be accused of lying to me. It was then that I realized that they knew that they were wrong and were purposely misleading everyone with their major doctrines.
Now I just feel sorry for them. They have backed themselves into a corner from which there is no honourable escape.
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