No - by quoting an outside source it gives the pretence of suggesting that the article is an open and transparent document, supported by secular sources. It provides a faux aura of being serious journalism.
They rely on the lack of research done by the vast majority to allow the potentially embarrassing editing of the original quote and it's context to slip by unnoticed.
It is just that the full quote and the sentence which followed it are so damning, they must have thought about the potential consequences of using it. They surely could have found a similar thought, expressed by someone else in satan's world, which wouldn't have been as damning towards them.
From their past experiences of having been caught out badly, they know people are checking up on them.