Tom's MO is to do exactly that, embellish something up that could be believable and blow it way out of proportion to get a reaction. Disney rank and file CM loath CoreLESS because he is inherently dishonest and represents the worst of fan journalism. He is a toxic element that basically ruins it for everyone.
So yes it could be possible that people weren't served bread on that day, but it may not have been as sinister as TOM made it out to be, maybe the industrial bakery was down for maintenance? A bread truck broke down? Who knows. So yes people may not have been served bread. We all know you can never get a straight answer regarding a non-normal situation from Disney.
This is exactly the same thing he did the same thing with his "scoops" for The Seas, The Land, CBJR, JC, etc. He's earned the nickname Unscrupulous, and if it's true that he is Jessica Figueroa, that brings together a whole new level of bizarre.