You are looking at it from the wrong perspective - it would *only* affect powers that people actually slot end redux into. Imagine you and I are playing the same AT, but you have a powerset that includes additional sources of end recovery or a global end discount, and I have none of those. In order to maintain my play, I have to periodically stop and rest, rely on blue insp's, etc. You don't have to do those things. Now, if I can get more out of just a single end redux in each power, I can achieve something closer to what you can, yet I still have to devote all those slots to end redux. You want to slot end redux as well? Go right ahead, but you didn't need it in the first place...