Do you feel empathy towards the Warriors of Darkness?
I'm of the opinion that those who DON'T empathize with them probably haven't been keeping up with the story or just skimmed through it without much care.

The reason the WoD's were so engaging was the simple fact that they are a representation of what would happen if YOU remained unchallenged and essentially pushed Hydaelen to victory. They were just like us, making their own way as adventurers on their own world (shard) and finding themselves lumped with the same responsibilities we did - except they succeeded on all fronts, so much so that the "Light" was victorious... And this decimated their world outright. It is through them that we come to realize the need for balance to enjoy the shard/world as it is, whereas either Hyde or Zodi winning the Light v Dark battle would doom us all.

In short, they are a prime example of why we are becoming WoD's for the next expansion. You have to feel sorry for them because they didn't do anything wrong (in the context that they were just like us and doing the same things we're doing) and simply fought in the name of Hyde without knowing what we know now, and thus doomed themselves.

Bah, no need to explain it when you can let Arbert (WoD) himself do it. Props to Joe Dempsie, he did a solid job on the acting front. Also find it amusing how we've had one kinda-not-really villain voiced by Gendry from GoT, and now we have another not-really villain voiced by Roose Bolton (Shadow Hunter van Baelsar).

https://www.youtube.com/watch?v=SMMr_BZddAw