No, your application is being accepted or rejected by the decision of the recruitment department. Most people there have the power to invite you to the interview, based on your qualification.
Within the interview/assessment, which consists of three stages (skill test, interview and sim check) you have to pass every stage to get to the next one. After the Sim check, you will get an email "within 4-6 weeks" where stated wether a pass or fail of the assessment.
As far as I am informed :
Thereafter it is up to the Fleet Department and their ability/availability of training capacities and priorities to train you. NTSO are bottom list priority. So as soon as there will be enough supervision captains and free simulator capacities etc available, they will plan for the next batch of people who have passed the assessment. Unfortunately/Fortunately it is not all about a good handshake and who you know. Of course, things like that will always help you along your way. But if you are no local (in that case qatari), even as UAE citizen, you will undergo the same procedures as any other foreigner.