Is the necromancer buggy or what?

I heard that the necromancer is messed up, really broken in terms of bugs, Rob had already made a few billion even with the druid with the bulwark/boulder build, but no one is playing it, but he himself is playing the necromancer and an Italian youtuber named Cyber Luk said in a video that there are necromancer builds that are buggy for some reason that I don’t even understand (he was talking about an aspect that creates an affix on the golem I think…).
So first we had HOTA which was broken and now we have skelton mancer? Is it ever possible to balance this game even a little? Because it deserves as a video game but if the classes are so unbalanced and messed up then the desire goes away, I’m not saying to strengthen the others but to fix this possible bug in the necromancer’s builds which allow him to do billions of damage and close Pit (if he were) to lv 140 oneshotting all the mobs on the map including the bosses. Come on…