I've said this all along. If you watch the Oprah interview closely she herself actually confirms and denies virtually nothing - she sets it alll up then lets him come on and do all the dirty work.
I've always thought her longer term plan is to divorce him, take a settlement, then make her millions (or as she hopes, billions) from revealing all about their life together. She'll feed into recognisable narratives that are in some sense relatable to many women - she was love bombed, married in haste (possibly due to age/wanting children), realised quickly he was very damaged, stayed with him to try and be his saviour, had to tolerate the cannabis which fuelled his paranoia/control of her, she didn't want to lose her children to the institution (playing on a lack of awareness in America especially about these things actually go, likening her plight to that of Frances Spencer perhaps)...
It's no wonder to me that she hasn't spoken out or written a book yet - that's all in the bank for her post-divorce life.
At one level MM has zero clue about PR, largely fuelled by her own narcissism - she cannot contemplate that she may make a misstep. At another level, she is incisive about protecting herself, even (or perhaps particularly) with regard to/at the expense of, her own husband. It's as if she can see it to the local, but not to the global.
She's an interesting lunatic, that's for sure!