Well given that afaik nothing has been said publicly, there's not much to discuss, but I doubt that he would have been ousted from DFJ without a reason.
It is of course possible that this is DFJ freaking out and cutting him loose despite his innocence but that is not the most likely explanation.
Witnessed firsthand Jurvetson say wildly inappropriate thing to female VC he literally just met. He remarked about her necklace that it looked like a choker and did she also have "a ballgag"? He also used to flash a slide in his standard pitch deck, which he presented all over the world, about the impressive "software" at DFJ. The slide would show a photo of all the young female exec assts. He would then pause and smile to an audience of predominantly men. Usually it wouldn't get any laughs; not sure if anyone really appreciated the joke. Steve is a brilliant visionary but clearly has some difficulty understanding right from wrong behavior. On some level I feel sorry for him but I unhesitatingly believe DFJ ousted him due to the mountain of evidence they uncovered during their investigation.
It is of course possible that this is DFJ freaking out and cutting him loose despite his innocence but that is not the most likely explanation.