No. I don't think so. I think them making them extremely rare has been a good thing.
Also, you can still get pre-rotw sunders that do the same exact effect just without a few stats. Also you can farm without sunders.
Super Uniques and Act end bosses would not add surplus, hardly even more than a sprinkle.
Nothing wrong with legacy sunders but nobody is even getting a chance to try the new ones...
Farming is handicapped if you're not a Warlock or OP build like Hdin, Javazon. Fire/cold/light sorc etc are reduced to archaic LK runs etc lmao