Essentially because they don’t want people from GA, less applications to sort through.
I don’t think much as changed but they want rpt prop drivers, namely those at Rex. The thing is, Emirates are now targeting those exact pilots after dropping minimums. A320 or shiny big 777?....They were not interested in those with time on type or overseas experience. It’s not uncommon, Tiger used to have a thing about only hiring those from Dragon. Things are a little different now there though.