Lore Question (Cryptoglyph Messages)

So a question about the Poison Record in the Cryptoglyph messages, is “She Of The Sky” The/Our Guardians? It seems as such.

I get the impression that this refers to Eris or, maaaaybe, Mara Sov. Sov is a stretch because the phrase “a liar drenched in the Sky” really cannot apply to Sov, besides the liar bit. That almost forces it to be Eris.