Great I'm genuinely happy for you. As for them, I’m willing to cut a bit of slack. Yes, they've clearly made mistakes in the past that they ought to be honest about (so have I—but I’m not a million-selling author). And yes, their writing may be somewhat tawdry and uneven, but it struck a chord and moved millions. That counts for something.
They went through a life crisis one involving a potentially devastating disease and they coped the way many writers do: by turning their pain into a story. I just don’t see the hanging offence here. What I do see is a worrying level of schadenfreude in watching them fall. And frankly, that says more about us than it does about them.