Jadzia's death really reminded me of the death of Tasha Yar. Both women had abrupt pointless deaths caused by powerful alien beings. They were even both caused because of behind the scenes reasons, the actresses were leaving!
I'm surprised they didn't take that route when giving Kes her exit. I suppose "Fury" was an even worst fate for a departing character.
I happened to like the episode "Skin of Evil" better than the death of Tasha Yar. It was so fast and the shaky handheld zoom in on her face was just disturbing. Armus was a much more interesting bad guy than the last 2 years of Dukat, plain and simple.