The point is, for a fight like heroic Madness, Congealing Bloods need to die FAST (in less than... 5 secs?). We have no time to dot, we absolutely need to Mind Sear, and if I'm not mistaken we are now doing less damage on those than any other class. We used to be in the top 2, down to last... we got the right to QQ.
Now I realise that's a very specific situation. Oh and I did heroic Yors'haj, where I was always on top of the meters... not anymore. A kitty completly destroyed me. But going back to the multi-dotting specification, I destroyed eveyone else on heroic Zon'ozz: dot dot dot OH I raped.
In the end, if you ask me if I'd prefer lesser dots and bigger Mind Sear, I still would prefer that than the new changes. Oh well, I'm adaptable, I need to accept not being on top for a long while now hehe.