Originally Posted by RobertS975
As a pilot, I can assure you that the fuel advisory issued by the DL pilot was not done lightly or frivolously. It is a matter of semantics as to whether an "emergency" was declared. The pilot knows that declaring an emergency triggers all kinds of audits and investigations. The controllers, however, have to have a vailid and defensible reason for allowing an aircraft to take "shortcuts" and expedited handling that would ordinarily be denied.
There is a quite distinct difference between the pilot giving a minimum fuel advisory and declaring a low fuel emergency. What seems to have caused the interest here is that the controllers hadn't been aware of a minimum fuel advisory prior to the pilot indicating that he couldn't take their instruction and (it seems) declaring a low fuel emergency.
That everyone is safe on the ground is a good result. Why the situation arose and why there was not timely understanding will presumably come out in the investigation.