Sometimes its not about whether the aircraft will work for the route ! If Boeing finance are despite enough to move Max's off their factory parking lot and government regulators would like for regional centres to receive scheduled air services, then anything is possible.
Look how Emirates initiated their New Zealand services from Sydney, purely in response to parking fees at Kingsford Smith and perhaps cargo capacity later. Nothing to do with aircraft suitability.
Problems occur later when the airline attempts to expand on a flawed revenue stream or competitors come onto a developed route with aircraft that operate more efficiently.