it would be best to actually remove all stats and make it ilevel based only, no need to min/max substats... no special extra ilevel from savage/ultimate either, put all people into the same pool and lets play the game like that
As it is it is impossible to min max everything with current settings and it foster a lower pool of players being able to enjoy the higher end content as well...
Also there is too much skipping certain mechanics from everything to extreme trials, Deep Dungeons, Savage and Ultimate and so on and so forth, I would say and claim that the ultimate experience and satisfaction is very much more in being able to get rid of this or that boss or dungeon, by actually having to go through all the mechanics, that could be made by doing DPS locks, as it is with some mechanics already, so you eg. can't to 0% or below 70% before this mechanic has played, which would take the skill lining up and gearing into an entire different world, if want to make your job of choice beating whatever thing actually optimal.