Some interesting thoughts; I will give my reaction. I totally agree with the preboard testing to prevent people with the desease from boarding, contaiminating other passengers and crew, and bring the virus to Hawaii. I believe that the fever screening upon arrival is too late.
If masks use and social distancing is still necessary clearly Honolulu can't have anywhere near the numbers of tourists and can't conduct many of the activities that are typical for us during our stays. Perhaps other areas of Hawaii could.
If hotels would only be allowed to open at 50% capacity or so would that also be applicable to timesharing? If so I believe that some resorts have or will have over booked their capacity. How would that be handled?
As for the fever screening, it's just a second level which can catch a few that are tested negative, but have a fever. They get quarantined and retested.
I see masking and social distancing as a one or the other proposition. If you are more than six feet, your chance of infecting someone are very small, especially if you don't cough or sneeze at them. The mask is needed if you come within six feet to reduce your chance of infecting someone. In the confines of Honolulu, masking will likely be required for a while, though on the beach and in other spacious places probably not. Other locations in Hawaii are easier for social distancing.
Of course there are issues of rental cars, taxis, etc. But all can be thought through and addressed. But it's not going to be the same experience, not until there is a widespread vaccine in use. It's just not going to be the same.
I would think the 50% (or whatever) capacity would apply to any multi-use/multi-owner short-term stay facility. Hotels, motels, timeshares, VRBO rentals, etc. Hotels can address it however they want. First come first serve. Priority based on status. Owners before non-owners. Etc.