They summon skeletons and play in a way where you can build a small army while casting other spells in the back.
In my opinion necros are made so they excel at solo’ing content since they can form a team for themselves, especially with skeleton archers coming up next.
It’s just a different mechanic.
There are many classes that don’t have aoe burst, sustained single target damage / aoe or whatever. That’s a class balance issue and not something that justifies AFK farming.
It’s like how people used rogue’s capture to crash channels. Rogues can do it but that doesn’t mean they should do it. It’s up to IMC to find the time to fix these, which is another issue.