I still think part of the problem is rosters. The industry has several standard rosters, 2 &1 (2 weeks on 1 week off) being one of them, 8 & 6 ( 8 days on 6 off),being another, and there's some worse ones. they all revolve around having ~ 1 week at home, and thats the crux of the matter. People if going to be at home want a weekend with the family (hence so called family friendly 8 & 6) but don't want to be getting over shift changes or travel on weekends.
A 2 & 2 (weeks) roster like the oil industry, Argyle etc would give companys more chance of convincing workers to fly at more convenient times. Not sure of the economics of 2 &2 versus the 8 & 6 though. One would think a smart airline company could offer significant cost savings if they could convince the miner to fly "off peak".