What a stupid question ! Of course I wouldn't but if the club deliver a shit catering product or service then they'll have to put ticket prices up anyway because people will stop using it. Mass catering really isn't that difficult and people that pays their money have every right to complain if...
It doesn't seem unreasonable to me that people expect things to be run professionally and correctly. Everyone, either STH or casual, has paid a hefty sum to go to the football. The club sell it as an experience - food, drink and football - if the club and their contractors can't deliver then...