The reasons for the manning crisis that the AAC is currently experiencing are much more complex.
Flying pay issues - leading to potential serious debt and perceived lack of loyalty from the Corps
Lack of promotion for SNCO aircrew
Herrick drawdown and a certain amount of operational fatigue
Historically dreadful man management
Changes to pensions
Loss of bridging package
Bouyant job market in the Oil and Gas industry
Most AAC pilots that are leaving are doing so because they can get paid more, work less and be treated better elsewhere. Some of those that are left will leave because they have seen how badly those ahead of them have been treated.
It of course doesn't help then people with genuine concerns about their career, family and pay are told "If you don't like it, leave."