Aussie, as a starting FO you make about 25.000 € net the first year, so thank god beer prices are acceptable in Austria.
The reason why so many people are leaving is mostly because Tyrolean has heired lots of foreigners and they want to go home now that they have the hours and the market is opening up.
The others who are leaving are looking for bigger aircraft and more pay, Cathay etc.
Not mentioning those leaving for NetJets of course
Tyrolean is not a bad company work. i don't think you'll find many companies this size were people are not complaining about the management. The people you work with on a daily basis however are generally really nice and great to work with.
As lowtimer, it's a good place to start and gather experience.