Dua Lipa 120
Coldplay 108
Shania Twain 75
LCD Soundsystem 141
Little Simz 110
IDLES 126
Disclosure 50 (-10)
The National 170
The Streets 131
Two Door Cinema Club 50
Jungle 95
Jessie Ware 85
Justice 221
Heilung 141
Masego 105
Nia Archives 120
Jamie xx 90
James Blake 105
Sampha 105
Sleaford Mods 100
Romy 125
Fontaines D.C. 190
London Grammar 90
King Krule 100
Orbital 160
Ghetts 95
It definitely was, as shown on this map from 2005. I went back to the festival in 2008 after a few years off and i'm pretty sure the campsite there had gone by that point.
if they headline the Sunday - looks like they are on the poster - you'll be ok - A LOT of people will be at Justice anyway and there are cool headliners across the festival as well.