Again: Eyewitness evidence is no good without any data or physical proof to go along with it. Until proven otherwise, hypothesis's and theories remain just that. As a matter of fact, when a hypothesis has absolutely no pillar to support it at all, it usually gets discarded.
I could just as easily say "A mermaid pulled me to Atlantas, but the pressure of the ocean scrumbled up my memory of it," as Ms.ALIENS!!!! made up her story. Doesn't mean I went to atlantas.
Uh huh. So what do you have to say about the data and the physical evidence that goes along with it?
A polygraph could get a positive if it was a hallucination she genuinely believed, emotional responses also could be the result of a trauma she genuinely believes herself to have experienced. I admit I'm grasping at straws since the story sounds pretty unbelievable
I also find it hard to believe she could recall a star map from seeing it briefly presumably whilst being tortured. And although not the most concrete evidence for denial, I am surprised that with all the evidence it isn't more widely known.
"Tortured" is an extreme word. I know a lot of media typically portrays the abduction experience as torture though. It's more of an invasive medical examination that people don't understand performed by beings that are unfamiliar and scary-looking. There's never any clear sign of malevolence or benevolence.
Also, hypnosis has been known to be able to help some people be able to recall documents word-for-word, and the Hill's hypnotist said they were both excellent subjects. Betty was instructed by her hypnotist to draw the star map only if she was able to remember it completely accurately. She did.
And yeah, I'm often quite surprised and appalled that with all the evidence it isn't more widely known either. Most of it can be credited to plausible deniability and the aura of ridicule.