Until you become a captain being a cadet is effectively useless. If your airline goes broke you will not be able to go anywhere. If you take a more traditional route then if the airline goes bust then you at least have other options.
You are also locking yourself into one airline/one type which is also a risk. The employers like it as they now have a captive workforce. With non cadets you could lose all your pilots if a another operator came in and started offering higher wages.
You have a very narrow experience base
You will be paying over par for flying training
You are paying at least 100k if not more for what appears to be a $50k job at Jetstar!!
You could go to uni do a degree and be so far in front both financially and from a employment perspective it is utterly ridiculous.
Anyone from Australia or NZ who takes these types of deals, must know that in Asia, the airlines PAY FOR THE ENTIRE COST of training. Meanwhile in Australia people are going to pay for the entire cost of training then take a lower salary.