I don't agree.
This is a restraint of trade which, I suspect, is capable of being declared illegal by the Office of Fair Trading.
The OFT would certainly step in if the operator of, say, The American Express Community Stadium decided that the only plastic card allowed to purchase tickets was...
As far as I recall, the licence to take photographs at Football League games is issued by the Football League, not the home club.
Southampton should be docked 20 points for being in breach of Football League rules.