Relaying on getting ice resist pendants/rings is a hard one, getting ML is ofcourse easier. But sooner or later that ice arrow will land on you. And thats just to counter 1skill from one char? I think it should atleast be reduced, 5 seconds is a long time during an event like cc. (AND FIX IT ALREADY, the stun bug that is)
But in my opion stuff shouldnt the tuched to much. None has reached 10rr yet, none is near done with ML. Its impossible to point fingers at whats op and not currently. ML/LVL/RR plays a huge part
I do however think DD is good as it is now, I got almost 60% myself, and still get hits for up to 3k+ if dd was to be reduced it would only benefit chars going for max damage, that already got insane absorb/internal def
Socket items takes just ages to build, I know a few who are working on them.. but it just takes time.
Its like you say, it just easier and quicker to get a exc set with 2 options for now.