So as much as I don't like what the Emperor is doing you can't really fault him for doing what the game allows him to do.
The OBVIOUS solution is to alter the parameters and not allow more than one airline per player. In addition put a limit on the number of hubs an airline can have based on the size of the country the airline is in. A huge country like USA or China limit to 3-5 or so. Small countries you get 1.
Different players like different parameters probably. I would be nice if AE offered more of a variety of limitations.
Rα's sole purpose is to be a world with no airline-per-player limit, so it isn't really a solution - you could as well just propose shutting it down