Similar situation
I closed on a 1993 H43 just 2.5 weeks ago. In my survey, we found an area of high moisture in the deck, on the coachroof, just to starboard of the solar panel. Our conclusion is that the wire from the solar panel, where it penetrates the deck, is wicking water into the core. My surveyor's solution is the same... stop the water infiltration, and don't worry about it any more.On my boat, the area involved is about 1.5 square feet, and does not bear any heavy loads. It is forward of the traveler, inboard of the hand rail, and isn't of structural concern. Hence, the recommendation to leave it alone.