The whole point of the comment is that we don't know what "MK-Ultra style mind control" means because the records were destroyed. We can only make educated gue

The whole point of the comment is that we don't know what "MK-Ultra style mind control" means because the records were destroyed. We can only make educated guesses about what is likely to have survived the program. If you think the guess is bad, that's fair. It's another thing to get hung up on the semantics of "mind control".