He made them his own when he made them better, that's my opinion. The Mando's didn't use his improved upon Mando tactics so, what? How can they say "those are our tactics!" if they didn't even know what he was doing? =/
We know this? You can say this was 100% fact based on..? So what if she predicted that other stuff, doesn't mean she wasn't lying. Now I don't know why she would lie, I'm just sayin'.
Listen to what she says at the end. She clearly predicted the fall of the Republic at the hands of the Sith. She had no reason to lie anymore. Her plans had come crumbling down and she was about to die. Plus she said she even owed Meetra the truth, as her master. That is of course paraphrased.