I think "own version" refers to Delta needing to rely on what their system shows. They can't accept printouts as they could be out of date or doctored. TIMATIC doesn't have different versions of the database.
Did the Red Coat show you the screen she was seeing?
No, she did not show me. She insisted that it was DL's own version. I kept telling her to enter China as the transit point and she said that it didn't matter, that the system would not allow that. For China to be a transit, I needed to go someone where else after that required a visa, like Thailand. She seemed to be swiping my passport at her computer terminal.