Its the exact same type of nonsense that infects another online airline game.
This is most likely a dupe airline of someone who already had a good size operation at the mentioned airport.
The create a second or third(which is a violation of the rules) airline, run up huge debts swallowing gates, and running stupid routes. DFW-DAL, EWR-LGA-MHT. While this tiny line never makes a dime, the actual owner has free reign to do what they want.
Want a suspect? Look for someone who is growing at the affected airports while everyone else idles or dwindles.