Its unbelievable when people cry at the LFR raid chat every-effing single time why they didnt get loot. I dont know how they managed to think that they would get a guaranteed drop from every lockout.
The new loot system is substantially better than what it was before. If you dont understand how it works I would suggest searching for the blue posts related to the matter. The system got couple flaws in it but works still better than the old one.