Not only OGG and LIH, but KOA (no air bridges) and HNL ("wiki" buses... but "wiki" means quick, which they are not) would benefit from being managed by an Airport Authority. The bill to create an Airport Authority died in the 2019 Hawaii Legislature... for the FOURTH year in a row.
I wouldn't change a thing at KOA, it's in interesting experience and very Hawaiian.
When KOA has (July-Sept) SIN levels of heat and humidity, an airbridge would be very welcome.
There was a trip a couple of years back & it was Kona winds for the entire two weeks we were there & plenty of vog. I had on a whim, booked F for the three of us, because once we weighed the baggage fee & it ended up being $25 more overall & to me, the extra stuff it is worth it. The only place that is Air Conditioned in that entire airport is the Hawaiian lounge, which consists of a prefab building with only the most basic of services & unattended, you get a code to use on a keypad. But on that day, thank God for that tiny little box to wait in for our short hop to Kahului.
If there were jetbridges at KOA, they would need an entire new terminal built as well, the current one is ground level & not enclosed. Maui & Kauai have air conditioned waiting rooms & jetbbridges. I love Molokai Airport for being so darn authentic, ever since I started flying there back in 1979, it has not changed one iota, even the big Island map. Gate one & two serve very well still, in the day one was TS & the other HA. Then TS changed to AQ & the 737's turned into Twotters & the frequencies increased. With HA the SD-330's went away & MKK was two daily DC-9's & then the Dash-7's purchased for the new airport in Maui JHM, a perfect STOL aircraft for the short runway. Then HA went back to the twice daily DC-9's & then left MKK & LNY to WP/AQ. Now once again HA is back with Empire flying the ATR-42's for them to the littlest islands.
707, 717, 720, 727-1/2, 737-1/2/3/4/5/7/8/9, 747-1/2/3, 757, 767-2/3/4, 777-2/3, DC8, DC9, MD80/2/7/8, D10-1/3/4, M11, L10-2/5, A300/310/319/320
AA AC AQ BD BN CO CS DL EA EZ HA HG HP KL KN MP MW NK NW OZ PA PS QX RC RH RW SA TG TW UA US VS WA WN WP YS 8M