About six months ago, I redesigned and replaced the batteries and all components (bus bars, ground terminals, isolator, combiner, breakers, cables/wires, terminal ends, fuses, etc.) within the box, including the battery switch.
The surveyor noted the problem and suggested it be fixed (among others), but otherwise considered the vessel 'seaworthy'. I bought this boat a year and a half ago and noticed this problem while performing the initial survey before purchase.