there is a huge difference between good and bad players
use ACT for any amount of time and you'll see the massive difference between a good player and a bad player. Also e4s did require mastery of your job to clear in the first couple weeks but as people get to higher ilvs content gets easier to do. Savage isn't really THAT hard, and it hasn't been since midas, its ultimate that is going to require mastery of your job, not savage. And even though classes are generally easier to play, the skill gap between a 99% parser and a 75% parser is still huge.