my point was there isn't enough for me personally different between level 4 and 5 that I need to experience in Early Access. It wasn't a "it shouldn't be done", it's just not an EA feature I personally would like to see vs others (for example I would prefer UI or party grouping mechanics improvements before lvl5), but that's very much a personal preference.
I'd like to see how they go about adapting 3rd level spells, which make spell-casters more complicated/stronger. Also, multiattack will start to make the martial classes do a lot more damage, and since we probably have enough xp in Act 1 to get us at least close to lvl 6, it would be good to see how the game feels when we are actually allowed to reach the progression power levels that would coincide with the content we are playing.