Can someone explain the new buffs to pets/totems?

The following summoned pets/totems will now chain cast their spells with no delay between casts, allowing them to cast their spells more frequently in the same amount of time.

Death Knight: Gargoyle
Druid: Force of Nature (Balance, Restoration), Mirror Image (Symbiosis)
Mage: Mirror Image, Water Elemental
Shaman: Searing Totem
Warlock: Doomguard, Terrorguard, Wild Imp

So does that mean my gargoyle will be a machine gun lol?