Her biggest mistake was going on Larry King Live a few weeks ago before her people got more info. Other than that, she did the right thing.
Oprah is not a person, she's a brand. Millions of people trust her and takes what she says seriously and she respects that. Anything that could take away some of that trust will take away from her brand and translate into less confidence in her and less cash at the end of the year.
That Frey clown actually hid behind his mommy's skirt on Larry King then finally fessed up when cornered, just like Bill Clinton did.