If you read between the lines the restaurant said come on in but when the class trip arrived they only had half the dining room staffed and couldn’t seat them all.
My interpretation is you had some Karen chaperones got upset. If they had actual quotes/proof they don’t tell that to the report. Just a buncha “I felt, they were rude” emotional quotes.
Too bad, the Cracker Barrel staff undoubtedly would have gotten a hell of a tip if they’d been able to seat the group.