*Spoilers* Anyone feel joining Emet would have been better

[Veloran]

Which can be explained rather easily. Eureka was tossed into the lifestream in an attempt to kill an Ascian. Meaning its aether is mixed with a lot other aether from the lifestream, aether that wouldn't be there originally, which is what made the place such a mess to begin with.

You're not in the Lifestream at that time though. And you also get visions of other places that are not themselves within the Lifestream. In fact because the explanation Venat gives is memories imprinted onto aether, and the power of the Lifestream is supposed to dissolve material aether and wash away mortal memories (Unless it's an extreme imprint on the soul itself like the Final Days), it shouldn't be possible to get any Echo visions from Val.