Narkissos made the key point right off the bat. The fact that this passage appears in different locations in the text and disrupts the flow of said text indicates to me that Paul didn't write it anyway.The fact that this view falls in line with later church views (that didn't harmonize with the attitude Jesus displayed toward women ) seals the deal.
BTW Nark-isn't it also true that in some manuscripts this passage appears as a marginal note?
Thanks