Area effect fires, I clearly stand outside of the area, still get hit. That's not a feature - that's a bug.
You might give the bug a name, you might find a way to work around the bug, but that does not make it a feature. And bugs need fixing.
When this happend to me the very first time, somewhere in a 40-50 dungeon, my immediate reaction was: "I will never raid in a game with such a bad net code". Surprisingly not: "whow what an interesting feature, let's try to find a creative way to deal with it."