Fortunately there are lots of high traffic channels you can advertise your events business on; locally, nationally and internationally @Bar2 as well as your own marketing channels.
Airbnb's core offer is not experiences - it is and always has been it STR marketing platform .
But you are right it's annoying that they won't say whether they are being discontinued. Just as they are sneakily doing away with their SH status for hosts but not telling anyone.