A number of the risks typically covered by a travel insurance plan
(Cancellation, Curtailment, Delayed departure, Loss, theft or damage to personal possessions and money, Delayed baggage, emergency replacement of essential items, Medical expenses, Emergency evacuation/repatriation, Overseas funeral expenses, Accidental death, injury or disablement benefit, Legal assistance, Personal liability and rental car damage excess, Loss of income) need to be provided on site – for obvious reasons.

Insurance companies therefore have agreements with Assistance companies (Europ assistance springs to mind – see ref. below – but there are plenty of others) who provide these services at the remote locations.

All I think we mean here is that the Assistance Companies have added the taxi service in question to their own list of approved providers, having found it to be reliable and trustworthy.