Return of Reckoning

I joined an SC with my 6man,in T2-3, we had 2 other pugs and we fought 12 people three Scenarios in a row. Why is this so broken? When they said they fixed it, it ended up just ruining the balancing?

I am currently running my WH through the T4 Epic Quest, I am level 34 atm. I am attempting to fight my way through the Caves of Despair in the Faith is Madness quest line. As I am fighting towards the Prisms, the mobs are spawning at such a rate that I cannot possibly fight through them before the o...