The people in charge know very well what they are doing - I also know that they are reading this board but they press on with it. The point is that the risk/reward for this dangerous exploitation model makes financial sense to them and since there is practically no effective regulation from the local authority it will not be stopped unless AB and the owners change their minds or they are forced to by regulators overseas which is equally as unlikely. Qatar is an extremely wealthy and welcomed customer as well as stake holder in big corporations worldwide that nobody wants to piss off just to please some overworked crews.
The financial "risk" of losing an airplane (god forbid) is relatively well defined financially and can be statistically analyzed and hedged against through sophisticated insurance products. Im not saying that they would ever like this to happen, but they are certainly pushing their luck right now knowing that human error is already responsible for 80% of all fatal aviation accidents and 10-15% of which were fatigue related under normal duty regulations.
It's time to act now. The camel is exhausted. Will you keep beating it until it's dead or will you give it a ******* break?