Sorry you had a bad time mate, I know I'd be pissed too if it was as bad as you said but I think it's important to realise that that description is by no means the norm for this band. I heard Jon was having major problems with the sound and who knows what else might have been going on behind the scenes. It certainly dosen't excuse a shoddy and short performance for the money you paid but just keep in mind that Jon is human and this is by no means the norm, not even close.
Keep the faith

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Oh, the reason they came on late was Richies fault, not Jon's. So I heard.
Phil