Playing for many years in a raid guild - noted the same trend - these guilds take every opportunity to practice this skill and refinement of tactics. Advantage of the opportunity to play in all dimensions of raids (8/4/16 people against SWtOR). In these guilds for players always have the same problem - people are performing a role in the raid, 16 people are forced to perform a role in other raids (4 / 8) or to remain out of work. Being one of those players - for me it is essential to be able to keep (Owned for such cases) additional spec to carry out his tasks in each of the varieties of the raids. I think there are quite a few people in my position and vote for the imposition of the dualspec. And I think, no need to repeat and say that such decisions have been taken earlier Blizzard and they were not unfounded (the reasons I have already announced and it's only a small fraction of them). (Translated by Google, do not criticize for the grammar)