So, Healthcare insurance is no longer enough, as it says they require medical repatriation & quarantine accommodation costs.
Looking at a number of travel insurance policies, I don't see any of them covering quarantine accommodation costs. Where do you go to get that?
As far as quarantine accommodation costs they just want to make sure you can afford to pay for your accommodation if you were to have to be quarantined. If you have a 10-14 day charter already booked, they accepted this because you can quarantine on the boat.