The point that I wrote in there is that I'm wondering whether there is some kind of hidden value in here that might actually make it attractive as a secondary form of sustain (to support LS/LoH). Before you jump all over this post and trash my idea, hear me out.
As I move up MP levels, I've noticed that elite and champion packs are often surrounded by all kinds of white mobs that die easily. With something like 2K Life After Each Kill, our cyclones churned by SW/Cyclone would mean that we'd gain 2K of sustain without even thinking about it while we are attacking the champion / elite monster. Some would argue that this is what life globes are for, but for many monks, we have to move to the life globes in order to get it. This is Life After Each Kill -- be it from cyclones killing monsters halfway across the screen or from the sweeping wind around you.
In some ways, it would almost seem to me that LAEK may actually scale with mob density. Anybody have any experiences about this? I'm curious -- I have not yet tested, but I'd like to try this out at some point.