If you look through the history of the way, you see it was
admin & maritime border level 2
admin & nation border level 2
timezone border (edit by Wambacher, who specializes in borders)
admin & timezone border level 1
maritime & timezone border level 1
Just changing the level back to 2 is not the right thing to do. Is this way still part of the maritime border at all? Is someone claiming more territory (by accident)?