Dungeon bosses and Primal yes probably Warriors get more bang for their buck with well timed CDs. But lets not forget the time where Warrior is compelled to do Maim > SE Combo cause Primal just whooshed away. I don't see why on Caduceus you are not on 100% uptime, nor do ADS, Turn 4 you might have minor down time. Only downtime for Twintania is pretty much Snake kite phase if you are doing it.

And it has been confirmed many a times. That Berserk is no where close to Fight or Flight in the DPS department, the warrior has to use Internal Release to overcome the advantage of Fight or Flight. And since you said 10 minutes, Warrior as of current implementation zero out on TP faster than Paladin by a large margin, even more so if you use minimal to no Defiance.