Solaris
High Overlord

Jaina isn't thinking with her head, she's thinking with her jaina.

Look at it this way. The elemental plane is tied to many different planes but is not a part of it.

Starbucks 1: Azeroth
Starbucks 2: Outland
Street: Elemental plane

So the elemental plane is connected to both the starbucks but the two starbucks arent actually connected. If im on the street I can either go to one side of the street and go into starbucks 1 or 2. But if I use a truckload of C4 to blow out the wall of starbucks 1 the place would be changed completely. Starbucks 2 however remains intact.