Cluster Traps vs Multiple Traps after 3.4

So what is the point of taking Cluster instead of Multiple Traps now that 3.4 has changed +3 to +2 traps on Cluster Traps gem? I has less damage, more mana cost...

I'm looking for an answer as well. Now that it's less damage than multi trap, the only benefit is how they land and that you can have a couple more out in total. Isn't very useful when you can already have a ton of traps out and it's hard to max the limit before they start going off.

At this point clusters just have a more natural trigger area, but if I remember correctly that comes at a cost of a bit more reduced compared to multiple.