That's one word (technically two, but I'll get to that), out of a spiel that includes "strike," "destroy," "slay," "execute," "cut," "rain armageddon," and "undo." If all of these are meant to be taken literally, the balance of probabilities is sharply one way. But more likely, Shojo was speaking poetically, embellishing with metaphor.
The crayon art also shows the Snarl tearing, puncturing, crushing, and pulverizing, but not consuming - even though it's drawn with a mouth, claws, and more importantly for the metaphor argument, eyes. Shojo describes them as "hungry." But in the Snarl's actual appearance (where it definitely impales an Empire of Sweat soldier through the chest the same way it did Zeus in the crayon art), its tendrils are not tipped with claws, and its eyes and mouth are nowhere to be seen. At best, for the literal interpretation, they're off panel. More likely, they don't exist and never did.
Finally, it should be noted that even if Shojo is absolutely literal and correct, he only describes the Snarl being "hungry" for and "devouring" mortal souls. Most (but by no means all) of those other descriptive words described what the Snarl did to the Eastern Pantheon and presumably does to gods generally. So if we're talking about Tiamat meeting the Snarl, it's still not appropriate to describe the result as it "eating" her.