heh. i see what you're trying to do but it's not completely outrageous to suggest 2001 would have been a better time for the band to play the festival.
And despite that, who's to say they would have even wanted to?? It's not until the last decade or so that the festival's really gone after (or managed to convince) the BIG headliners. As in top of the heap in terms of "legacy" etc.
I know all the headliners of the 80s and 90s are big names but they're certainly not up there with McCartney, Springsteen, The Who, Stones etc. All huge, dare I say, 'heritage' acts that I doubt would have played any time before the last decade when the festival was incredibly popular (with a bit more "indie cred" than today) but doesn't seem to have had the clout to get someone like (again) McCartney to come and play.
Bowie's a bit of a different story for obvious reasons but it's not until sometime into the 2000's that you started getting all these 'heavyweight' acts turning up to headline the festival. The festival's a lot different to what it used to be
(to some people's understandable fury ) there's no denying that the festival's certainly a lot more gentrified and "middle class" than it was in 15-20 years ago, and now it seems like a shrewd business move for an act like The Rolling Stones or U2 to come and play as much as it is a case of them going "oh yeah we ALWAYS wanted to play here...!"
I mean, even with the festivals Greenpeace/CND links etc and that, I really doubt you'd have seen them wanting to pop to worthy farm in 1992 during Zoo TV to headline alongside Carter USM, Shakespeare's Sister and Youssou N'Dour
and fucking awesome as it would have been, a Popmart stop-off at Glastonbury in 97 wouldn't have worked either, it's not unfair to say they were still pretty out of the band's league.
why do I type so much? and that's a rhetorical question!!