Sorry to hear about your experience - ‘abuse of hospitlty’ just about sums it up.
I believe, in hindsight, the reason air removed the review, in my case it was their attempt to dispel a common misconception amongst elder users that in turn reflects negatively on them - the belief that breakfast is included in the deal because the site has bnb in it’s title.
If every new guest behaved this way and had this misconception there would be chaos. It it was more an attempt to educate this individual about the home-share concept, rather than protecting me as a host.
I recently had another ‘neutral’ review from a guest who was pissed because I couldn’t look after her luggage after her reservation had ended. Air refused to remove it and encouraged me instead to leave a public response, which - as someone else pointed out - does not appear on the app… pointless!!
You could maybe try to get it removed on a technicality … for example, if the person who made the reservation was not the person who stayed, etc.