It's not. The author's own dad publically called him out as a liar about his story (I believe the author claimed his dad was dead). It's a fabricated story, like almost all defector stories from North Korea. Stories like his sells well, and there's no way to verify any of it.
Ms Park has gone from tragic and respected refugee, to fullout lunatic being caught in all kind of lies. I feel genuinely sad for her. Find the early interviews with her, without the plastic surgery (mentioning this because of timeline, not for judgement). You will see a different person.
WOW I had no idea - after the first interview, I didnt follow her in any regard... so I had no idea...
But - I did have a secret thought when I first saw the interview on Rogan, that the reason she was largely given credence and airtime was her atractive looks...
Based on your comment, she might be a demented sociopath along the same ilk as Elizabeth Holmes. (who thought getting pregnant would keep her out of prison)