Since I started this thread, I want to share to you my realization about pushing DPS as warrior. I want to thank people who replied here and shared their knowledge.

1. Raid should have high DPS output to gain more DPS outcome on parses.

2. Pushing DPS in turns requires high-skill and very coordinated team, especially the tank-healer communication.

3. Pushing DPS over mechanic reaction: Pushing DPS requires to bypass some mechanics to consistently land hits. But it adds a more room for risk and mistakes that could wipe the raid.

4. Gaining more threats over Main Tank : With due respect to Main Tank, whatever gear he has, it will be a mess if you gain the aggro over the main tank with maximizing this rotation ; SE > BB > BB (HQ STR POT + Berserk + Internal Release). You might require to change the rotation in order to give space for threat distribution.