I don't think it's been mentioned before, but this is Angle's fifth Wrestlemania and for all those he has been a heel, despite the fact that he has been a face in 2001, 2002, 2003, 2004. I don't know what that tells, but I found it kind of interesting. As far as longest consecutive heel streaks at Wrestlemania, that puts him in second only behind Ted Dibiase who worked as heel at six Wrestlemanias in a row, 4-9. Greg Valentine also wrestled as heel on Wrestlemania for five Wrestlemanias in row, 1-5 which puts him in second place together with Angle, if I'm not mistaken.
Well, while I'm not sure of the crowd reactions to the Desire videos, I can say this: if you hear only one side of the Austin story for so long, eventually everyone's going to believe the side they're hearing.