I would have to check the cutscene script, but I'm pretty sure Moenbryda was clear beforehand that there were risks involved in teleporting to an unattuned aetheryte.
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I am rather curious,
Can it teleport physical objects like wagons & other sorts?
Allegedly it can teleport belongings that the person considers "theirs". So theoretically a wagon can be teleported, but not a wagon of goods for sale.
Which raises some uncomfortable questions of how the Warrior of Light considers their festive mikoshi carried by Namazu, but I would say "don't think about it too much" is probably the best guideline we'll get.