Its not that they expect to see a bowl of brown M+Ms - its that they expect to see someone come back to them during negotiations with - "M+M's - seriously?"
If no-one comes back they know they need to give that venue more attention.
Yeah, the quote on that page mentions an even better litmus test for this: "Provide us with 15A outlets that give 19A of electricity." This should be an immediate red flag for any facilities manager reviewing the contract before it's signed.
If no-one comes back they know they need to give that venue more attention.