Muse have played every festival going over the past 5 years so they are hardly exclusive though out of the 3 headliners, they are the biggest by far.
MCR are a marmite band and have been bottled at R&L and Download plus as people have pointed out they are not even headliners at other festivals in the UK.
IMO the Strokes should not be a R & L headliner, they should be playing second to a big draw band and although they are good live they are not a massive appealing band. Pulp are playing every festival in Europe or so it seems.
Beady Eye are a poor NME headliner, one album, Liam is doing no harm to anyone enjoying his little mind making a Beatles style music but they are just a poor mans Jim Jones Revue and should not be playing that high. The festival needed a big popular headliner to go up against MCR, personally I would have loved someone like Soundgarden but they probably wouldn't have shifted enough tickets
Janes Addiction are a fantastic band but like bands like Faith No More who have played before them will probably only attract 10 men and a dog watching them.
2manydj's should be headlning the Dance Tent one night.
The rest of the line up has the odd gem amongst a lot of new very average bands.
Festival Republic have taken the regular attendees for granted that they would pay £200 to watch a very average festival line up full of bands people are not that bothered about or repeat bookings and the public is voting with their feet. The fact is that the festival has not sold out a couple of hours after tickets went on sale and people could get onto the order tickets pages straight away for the first time in many a year which is even worse considering pre-sales and ticket touts buying them.