Yes you are right @Mordulec, for the low-mid level players it's a killer.
While top players have alot of builds at hand, and can adapt quick changes in case of lockdowns, a player that has relative low fussion, and only a few high fussion items, will get wrecked fast.
The game is unbalanced, and the gap even between mythicals is huge, see shreders vs neddles, or God Mode vs Meltrons/ Ultraspade, or between legs(the 2 jump/walking ones are beeing useless now).
The balance wont come from beta, cause the gap there between epic-legendary-mythical, it's even greater(only in terms of dmg it's of 50%/tier).
Will have to wait and see.
The ideea as a principal, is to add fun and diversity, but not in the curent setup of wepons.
As to put it in the words of the devs... it should be implemented "SOON" (probably never)