alt Hacker NewsAffairs don't take down CEOs of major public companies. It's kind of assumed that they all do it. Like, how many subordinates of Elon supposedly had one of his kids?
Everyone involved has to be CYAing. It's pretty likely that a whole boatload of people were involved and none of them want to be the scapegoat that gets to go to jail for it. If they can sell this as something as simple as Jensen getting tricked by a cute spy, then everyone involved can sleep easy and Jensen will probably keep controlling things behind the scenes for a while.
My guess is that someone knew this and leaked it because they also have insider information that Nvidia is about to be forced to write down the AI trade anyways and they 1) don't want Jensen walking away with a golden parachute and/or 2) want to use the spectacle of Jensen's infidelity to color the narrative or distract from something.