I like Emet and I could understand where he was coming from, so I can kinda say the same about Durante. The guy's been tormented for 10k+ years of being made of dark-aspected aether, I can't imagine that does much good to your psyche.
I also find it rather fair that he can easily redeem himself, but that might be because I don't really know how many suffered under his plot, whereas with Emet we know he had supposedly been responsible for the death of millions.