I understand the anxiety....and probably appropriate in general, given the unknowns.
I can tell you the owners get the money immediately after the renter pays, less VC commission and any VRBO fees if applicable. 50% for both parties at each payment. So that's not a big risk for the owners. VCs only investment is primarily in their IT infrastructure and people cost, so cash flow could be a concern there, but guessing they have less exposure than most businesses.
I don't know which resort you have booked, but timeshares are owned properties so barring a complete closure of the resort you should be good. Technically a resort has to let an owner reside there, as they own their week, but lots of logistics can keep that from happening easily, e.g., quarantine, limited air access, etc.
You should have your name on the reservation at this point so the only real risk is air access, government lockdown or resort formally closing. The last one will get you a refund.
That said, I don't know how refunds like that would be structured and whether VC is liable if owner refuses to refund, and then they pursue action against the owner, or something else.
For my rentals for next February, my MFs are fully funded and all the rental deposits are going into a holding account, just in case...but every case is different. Heck, I hope to be there for two weeks and more worried about how the whale trips will be structured.
No easy answers, but August much better than July. Hawaii can't survive very well without tourism, so something will have to give.