Exploration is the active seeking of new places to visit *for the first time*. Anima doesn't influence this at all, as you still need to reach an aetherite in order to activate it.
On top of it, aetherites are hubs, right on the road. They're not remote areas that require "exploring" to be reached. As such anima and teleportation don't influence exploration one bit.
They're just a timesaver that can be used not to travel through the same areas over and over (which has nothing to do with exploration), which is entirely boring in any game.
This said, they don't need to be the only means to travel faster than running.