Read The compass docs. Specifically the sequence protection flow chart. I have run this through CC more than once. Mutual = pay protected. Non-mutual = pay goes away and credit stays blocking the footprint. It is a 15 code vs a NS code. NS is non-disciplinary in the case of RO decline.

The contract is a living document. You unfortunately cannot just read the raw language and take it as absolute. Hopefully this will be improved with the new TA.