Fair point. We didn't make the green or red beach, but did see quite a bit of the big island, including driving through clouds up and down the the middle of the island to/from Hilo. Snorkeling with the manta rays at night was probably the most vivid memory I will have of the trip, but the beauty of Pololū Valley took the cake for me aesthetically.
I do think maybe I was being too harsh on the Hawaiian NPs so I bumped both up a point. If all you did was fly into the National Parks and then back to boring mainland city USA, you’d be absolutely amazed. So I shouldn’t ding them too much just because the rest of Hawaii is amazing as well. Instead I tried to rate them as completely standalone.