Mary In The Junkyard were great at the BBC Introducing stage at Glastonbury last year too!
Other small bands I'd like to see at the festival
Tennis
HighSchool
W.H.Lung (were great at Williams Green a few years ago)
Sea Lemon
Bdrrm
Glastonbury is actually pretty poor for these kinds of bands compared to other festivals, given its relative size to other festivals in particular.
I'm never sure whether that's a direct policy of the festival, or more to do with the affordability for small bands losing money on playing the small stages.
People with issues have to contact support, get stuff manually verified etc.
It takes time for see / GFL to do customer service and there is no gain of wiping registrations