I do believe that I hate this change more than just about any other in the 3.5 years I've been playing DDO.
My Rog1/Brb4 TWF-er feels like she's fighting in molasses. It's almost unbearably slow. The funny thing is, the little thread description right above the window where I am typing this says "Discuss the heart pounding action of DDO's combat system here!"...yeah, whatever.
This change makes low level combat suck. And the worst part is, it's almost certainly here to stay. Combined with the raising of AC's (a change I was willing to accept on it's own), my enthusiasm for the new module has been significantly reduced.