Maybe if it didn't have Helios's feat, but I personally think this to be legit, albeit not applicable for combat purposes since, well, Astral Projection.
Not that it matters because it'd serve nothing more than support for Infinite Speed Helios and Hermes (And Titan mooks in general since Hermes fought in the Great War). Though I wonder now, what kind of speed will the Sisters get for multitasking the threads now that we know that the Threads span all of life and time?
Seems like it, the Greek Mythology was shown in the games to be inconcievably grander than life, Norse seems to be considerably more humanized if anything else.