Money talks, bull5hit walks.
These sort of rumours (about "high ranking manager talking to another company to stop pilots leaving") usually abound during these times.
What is Air Asia going to offer JET in return?
As you correctly state, JET are not going to park aircraft and cancel flights simply because another airline - a half a world away - can't afford to compete on the world market.
JET would be committing financial suicide if they did - and the person who made the decision would be out of a job quick smart.