If the Kahala hotel was going to rent Teslas, they would need a couple hundred in order to justify a 12 stall 250 kW supercharging station. They don't have the demand or parking for that kind of infrastructure. Maybe 4 urban 72kW chargers and/or a bunch of level 2's. The reason a Supercharger was put there was because it was easy and fast to get permitted.
I believe this was not thought through by creating a valet only paywall in order to charge your car, in a not so convenient location. The reason for no idle charges is due to the fact that you have no control over the charging process so you should not be responsible for fees for leaving it plugged in.
The island desperately needs level 3 charging infrastructure as evidenced by the long lines at the pearl city charger. if you look at the Google reviews, they all rate that charger 1 star due to its slow speed and extremely long lines. Most people cannot afford a home where they can easily install their own charger.
I believe there is a battle to put in level 3 charging with both the government permitting process, as well as the power companies demands, and the fact that location/parking/land is so expensive to allocate for charging. because of this Hawaii will continue to fall far behind other states in this important infrastructure.