The DFAT warning will hold current until borders officially open and then countries, provinces, cities will have more specific warnings if Covid is a risk factor.
The insurance companies will take your money, as the condition on insurance just says that the DFAT warning is not current at 'time of travel', and to postpone or change travel to that location if it is. It's your responsibility to ensure you comply with terms and conditions of travel at the required time. Insurance, Warranties, etc are worth nothing if the fine print is not complied with.