The water method happens very fast. I do not see how doing it this way can be quicker and still retain the quality of the food.
I do not want to have to open the microwave every few minutes, stir things around, break things up when I can just place it in cold water and have it defrosted safely in no time.
You can stir, break up, etc. ground meat once it has defrosted enough to let you do that, but what about whole pieces of meat?