If he didn't want a WCW guy holding the record, then why didn't Flair come in later, say between 5 and 10? Heenan still has a heart attack on commentary and Flair still has to last a long time to win, so the story holds up. For that matter, the next two guys to hold the record are ex-WCW guys that were there in the time that WCW was really taking it to the WWF (Benoit and Mysterio) so I don't think Vince wanting one of "his" guys holding it is the case at all. With Backlund, I think they just wanted a "Older star comes back and perseveres through grit and determination" kind of story.