So why do you think the Phantom knuck included “minimum fuel” in his call to Ground prior to departure? There’s usually a reason for the inclusion of information in calls to ATC. I can’t think of too many mandatory calls that include irrelevant trivia.
Hopefully MG will tell us why the conclusion of his homework was that the information was correctly included in the call, and what was done about that information. I’d anticipate that the Phantom knuck would have been a little perturbed if everyone in the ATC system merely shrugged and thought: “I wish him luck”.