Youre on the right track. I can provide a little more to your point

Pilots parse the black and white, and then insist on the black and white wording but that isn't how law works. The black and white on the contract would then be backed up by the intent of the language and then past practice. Law isn't a choose your own adventure book where you find obscure reference that provides what you want.

In this case the people that wrote the language, Delta and Delta pilots, would submit their notes of the intent of the agreement, and the judge would uphold the intent of the language. That's if it was even being challenged.