It must be said, Wikipedia is not always reliable. Since it's open to public contributions (it's a 'public domain' encyclopedia), it can be unreliable at times or even biased, based on who decides to edit a page. But it's useful nonetheless. I realised soon after I posted that the Wiki entry still doesn't fully account for GA Parwez's view.
Thanks for clarifying (or is that complicating?) the oral Torah issue. :)