So the kids over at acti-blizz said the artifact/solo dungeon is going to be VERY HARD .. Thing is its not very hard mechanic wise, it actually feels super scripted (but hay it is PvE) and all that is hard about it would be RNG to get that one specific legendary that completely trivializes the encounter ..
Hard = RNG loot .. cool story
Edit: Quick examples not intended as a comprehensive list: BM= Legs / Affi = Ring / and so on
Like some have said: They could have just as easily tuned it to YOUR current ilvl as to put the focus on mechanics (skill) but NOOOO they went the other way and made the mechanics easy to learn (say 3 to 5 attempts) and put all the weight on gear .. Thing is before the next tier opens up (t20) RNG determines who has the gear TODAY!