No it wasn't that. It was just horrible sound, horribly played, horribly performed. I guess everybody has a bad night.
I've been to enough concerts from different genres to know what to expect. From small 30 person local bands to 100,000+ stadium shows. Some were good, some were bad, some were horrible (Alice in Chains).
But the Allman Bros had an off night. I know they are better than that.