Looks to me like the politics on Oahu are more concerned about the HART than the memorial.
If its really that bad then get a barge, anchor it well, put up a sturdy canopy or just some modified connex containers if they really must save money, move the memorial over to the barge until the repairs are made.
But i doubt they will consider that at al, they could just set it up on the deck of the Missouri, but again they are whining about lost tourism from the eruptions on the Big Island.
The National Park Service runs it. The state of Hawaii had nothing to do with it.