The only thing that was wrong with it was that they made it so you can still get all assists but get the refresh. Now it's changed and you have to choose between starving your team mates of kills, or being useful. Tbh, I'd rather not have one on my team that just sits at the back waiting to snipe kills and if I did I would assume that the enemy has more chance of losing, unless my team was already losing anyway to other causes.
But is Darius getting all the kills that much of a bad thing? If he is fed and knows how to use his ult, he can get off a 5 consecutive 1000 true damage hits while still being bulky.
His ult does more damage than AP Nunus ult, and its an instant cast.
Idk, I just feel like they need to either get rid of his damage, his utility, or his defense... because he is so strong in all 3.