i dont have a clue about this cadet recruitment, but please come on take a chill pill.
After all if you really think that Gulf is unprofessionnal go apply somewhere else, we dont need you! nobody is pressing you to apply to an unprofessional airline ?!
i think that calling your "maybe" next employer unprofessionnal is not a smart move.
thats my point of view.
Qatar has also a cadet scheme, apply to them, they might be "more professionnal".
you have to learn to stay cool in this business even in the worst situation. if you can not do that you might not be suitable for this job, thats it !
chill out my friend
BD