QR 515 roger that. Emotional point is taken. Truth however is somewhat controversy. Never mind. Talking about union here is the reference from the labour law of Qatar:
PART TWELVE
WORKERS ORGANIZATIONS
Article (116)
The workers working in an establishment where the number of Qatari workers is not less than hundred workers may form a committee from amongst themselves to be named " the Workers Committee" and more than one committee in the establishment may not be formed.
The workers committees in the establishments engaged in one trade or industry or similar or interrelated trades or industries are entitled to form a general committee from amongst themselves to be named the General Committee for the Workers of Trade or Industry.
The general committees of the workers of the various trades and industries may form amongst themselves a general union to be named the! "General Union of the Workers of Qatar".
The membership in the two committees referred to and in the General Union of the Workers of Qatar shall be confined to the Qatari workers. The Minister shall specify the conditions and procedures for the formation of the workers organizations referred to and the membership therein and the way of carrying out their business and the interrelated and similar trades and industries.
As you can see it's absolutely legal to form union but it's reserved for the Qatari nationals. Reading further employees can go on strike here according to the article 120. It's all up to the Qatari nationals what this airline is gonna be like. Kuwait is the best example.
Anyway if anyone is interested here is the link
http://www.qatarembassy.net/Qatar_Labour_Law.asp
Cheers.