I contacted AXA about hospital costs if asymptomatic before my last trip. They said yes, no, yes and then when I and others contacted them yet again, formally confirmed it WAS covered. That was 2020, so do check again if planning to use it.
There was the other little problem where certain people were sent off to hospital after an "inconclusive" test last year. As reported on the Facebook ASQ page. I'm not quite sure what happened there.