Greagoir has a vested interest in portraying magic as empowering for those who possess it. His job security relies on people being afraid of magic and mages.
Keili, by contrast, is clearly mentally unstable, and incapable of wording her statements carefully to paint herself in the most sympathetic light. Either that, or she's a really fantastic actor.
How is this relevant with what I said? Raijin said that templars and Chantry say that magic is a curse, and I mentioned that they also call it a gift.
And a magic is dangerous: I don't support the Chantry Circle system present until Asunder (I'm in favour of an indipendant Circle system), but I believe that magic is dangerous, and that it's both a gift and a curse for mages. Unless you think that the demon threat is nothing for a mage.
And I agree that Keili is mentally unstable, and that the Chantry teachings might cause this, and that the Chantry/templars and the mages should've countermeasures for this events; that said, most content Circle mages don't share her views. If the Chantry was truly brainwashing mages, there'd have far more people like her, and a lot less Libertarians.