I think the conventional way to achieve that is to use two spells. Each spell can either push or pull, i.e. either receive (Intellego) or send (Creo).
Doing two-way push would mean affecting two targets at once, which is somewhere between too hard to bother and impossible without a break-through. The group target is not applicable when the two people in the group are miles appart.
Two-way pull is even harder, because pure Intellego can only grant senses to an individual. To affect a group, it is Mentem and a bunch of requisites.
Combined push and pull from one side would also require requisites, at least Creo with Intellego or vice versa, to the point that two spells is going to be easier in every respect.
That said, you can do it.
When it comes to the non-Hermeticity of Whispering Winds, I think the point is that in Hermetic Theory it should be an Imaginem effect. When you can do it with an Auram effect, it is singular legacy effect which cannot be varied without a breakthrough.