it’s not that there are no improving identifications. it’s that there aren’t any improving identifications for others.
this was closed back in the day, but it may need to be revisited: https://forum.inaturalist.org/t/error-message-on-inaturalist-app-owner-application-form-doesnt-specify-identifications-need-to-be-on-other-users-observations/50771/4.
judging by the number of threads linked to the first post i referenced above, this is at least the 4th time now that folks have needed clarification on whether “improving identifications” or “improving identifications for others” are needed to apply for the application owner role.