4.3: The Geomancers

[BillyKaplan]

This have literally no sense whatsoever.

Adloquium - The scholar's standard-issue healing spell. As well as closing wounds, Adloquium was designed to grant a secondary-effect: a temporary arcane shield that helped protect front-line marines from further injury

If that still doesn't sell you on that point, feel free to tell me how Noct ASTs are tanks. Because those had an entire quest line about enforcing a geomancer's wards with that sect.
As for raising, that I will yield the semantics are off. We can't ressurect Moen, nor could we Hauchy (though that one was dumb if you were a healer or even a SMN). But there's a reason why the debuff is called 'brink of death' - we're tied to Hydaelyn, we can't die for real so we stay in a sort of limbo, and so we can be brought back. That's what goes down with that. Hell even the warning marks we see are the Echo telling us to get away from danger. Basically everything that happens in combat is canon.