Interestingly there are domestic routes in the UK where the introduction of a competitor was a spur to increased travel. The incumbents on the route squelaed and moaned before the extra airline was allowed on (I worked for one of them). They claimed that traffic would be diluted etc. In reality traffic grew on the route. proper competition meant more exciting yield control and promotions for the passengers.
Competition shouldn't be feared it should be welcomed. I'm sure Bellview would squeal if Aero or VGN wanted to compete on the Mumbai route.
Lets get on with life and maka a success of aviation in Nigeria