Qantas is a private company that has to be able to return a profit to it's shareholders. Why would they consider a route/ frequency/ departure time that would not return the required profit? They have obviously researched their ports, and have concluded they cannot make a profit from the 'demanded' flights/ frequencies. Maybe those in Launceston should work on ways to entice more travellers to their city - then maybe it would be profitable for an airline to meet their stated needs.
Qantas (and Jetstar) is not a government-funded public transport service.
They can only fly to places/ offer frequencies/ departure times etc that they make a profit on. Otherwise they will lose their investors, and subsequently their business.... Simple as that.
These '100' people appear about as ignorant as they come, and possibly full of a bit too much 'self-importance' relating to their 'city'.
Idea here..... build the city, build the tourism, get the demand = get the airline service you want. (Derrrrr !)