They're actually not booked out a long time in advance. Usually in case of a fiber cut on a major subsea cable, the crews will be out to fix it within a couple

They're actually not booked out a long time in advance. Usually in case of a fiber cut on a major subsea cable, the crews will be out to fix it within a couple days at max. The real issue is the second fact you identified, that it's cut in middle of a warzone. I don't think they will risk sending a ship out unless closely escorted by military vessels.