+1 Summon Limit to Storm Totem on Valguur's set?

Playing around with this set, I was wondering what this skill mod is for.
I dunno if I’m missing something obvious, but there’s no easy way to make use of a fourth totem summon this provides.
Even with a good CDR roll on your caster offhand, by the time you’re ready to summon a fourth totem, the first one will expire.

This made me wonder if it wasn’t supposed to have a -1 or -1.5s recharge to Storm Totem, like Stormreaver and one of the Groble offhand MIs have.

The one way this skill mod seemingly has a use currently is along with the +4s duration on the Shaman Conduit, which seems too specific to be applicable.
And then you’re using a +1 Shaman amulet on a build that will mostly use Necro skills.

Thoughts?

Time dilation will give you 2x from the start and since you are vitality it’s super easy (and recommended ) to incorporate it

I mean I wouldn’t mind it per se, currently using Groble Effigy on my totem focused builds.

True, forgot about that one.
I still think a skill mod like this shouldn’t lock you into a specific Devotion skill just to get it to function though.
It’d probably be more logical if it was a straight up -1 or -1.5s recharge even if the +1 summon limit was removed.

I think you are supposed to use it with %CDR amy (Halacor, Reaver hunger,). With good rolls you can drop all 4 totems w/o TD. Or conduit with Totem prefix.