why does sts always do it.

[Bluehazee]

With Aegis we can kill boss in 1 or 2 hits only if we very lucky, we need proc at the good time, we need almost all mobs gone, we need to have been able to activate jug just before to be sure not get stun and finally we need to have ultimate ready, so yes when all this happen its really nice but it is not happening everytime!! many time we activate ulti just to get stun right after or our 2 hits of glory are counter by dodge etc

Isn't the same for other classes? 0.o
Don't rogue & mage need to proc at right time as well? Don't need both to clear mobs first? Dont need both to avoid stun? Ultimate?