I don't think she's lying but this understates the possible motives, even at that, a few million is significant incentive. Other incentives, there are a lot of people who think basic human rights are at stake, lying under oath and loss of privacy is a small price to pay for preventing back alley abortions.
On other notes the whole presumed innocent/job interview thing.
It might be illustrative to reduce the stakes a bit. I'm applying for a job and in the process someone accuses me of a crime where the only evidence is that person's word. Is it really reasonable for my prospective employer to assume the accusation is true? Even if true, to old it against me when it was 30 years prior and their aren't any accusations for my bad behavior over the last 25 years?
Also, I don't think either is lying about the events as they remember or do not remember them. Their stories are totally consistent with something happening similar to her story but not an attempted rape. Memories of trauma have been demonstrated to get worse over time and memories of not trauma fade. So, it could well have been, he tried to have sex with her, she didn't want to and freaked out. He backed off and forgot about it. She was triggered by it and it got exaggerated in her mind over the years. Even if it happened exactly as she said, that could well be what happened. Not attempted rape but drunken sexual aggression where he backed down when he figured out she wasn't going for it.
None of that matters, I don't like his views on the 4th amendment but I don't need to claim he's a rapist or attempted rapist with little to no evidence to not like the guy.