I don't buy the argument that Loganair are that expensive either, tbh.
The alternatives are you either drive or get the train. In which case the price and time saving offered by LM is significantly better value.
Easy might take some of the leisure travel but I'm not sure their schedule will be that attractive to those that need to go at certain times or days. If I was a betting man I wouldn't be at all surprised if those easy domestic routes don't survive in next summer's schedule. But, as others have widely predicted, there will be several flights a week to sun destinations.