They cant train their way out of what is happening right now regardless of how many defect to new TC positions. QF are about to restart their sausage factory after they had to stop to train more trainers , BA, Virgin and Air Canada are accelerating. This is the relevant threat to Cathay, which is being turbo charged by an unsupervised HR empire and their COS shenanigans. Almost every 350 and 777 pilot above SO rank in this company is being rostered to high 90 hour months and has been since January. Christmas/CNY should be defining as to what gets offered to keep people here: accelerating resignations/retirements and the remainers on 900 hour maximums = parked aircraft.
The solution is a proper monetary response to housing and extensions or a piecemeal trickle which will offend and accelerate the departures. I think most of us can guess which it will be.