I think the wording of this particular section of the contract is being given far too much significance.

It was written when there was a much wider variety of employees and travel status on any given jump seat. Pilots "staged" out of their home airport because that was the guidance on JS status we were given and told to use by JS admin. It seems a fair assumption that the author simply used the same common terminology, not intending that the commuter protections would be contingent on such minutiae.

What sensible rationale could be used to deny a commuter who meets all the criteria the protections offered simply based on the JS status he booked?