I like MMORPGs(at least some of them), so you can't say I'm saying this because I don't like MMROPGs. And I've played WoW, and I liked it, and I never say it was bad. It's actually a great game... In GAMEPLAY terms. My problem with WoW is that I don't like how they screw up the storyline. They COULD have made up some random Demon Lord inside Outland instead of Illidan, right? They COULD have kept Kael as the leader of the Blood Elves, right? They COULD have used some other Scourge general instead of the Lich King as the endgame boss of WoTLK, right? They COULD have said that Arthas is too powerful to handle for young and inexperienced adventurers, right?
If you think for a second, it would make more sense to make illidan a boss, insted of making a totally random, never seen before, end-game boss. Illidan was the end-game boss for buring crusade, and he did fit perfect in that role, so i do not see a problem in that.
I do not really know the background of Kael, so well, i can not say anything about that >..<'
Why make a random Scourge leader the end-game boss, when lich king is the real leader. It would be like throwing in one of deathwings minions as a end-game boss insted of deathwing.
I wouldent call 25 full geared level 80 "inexperienced adventurers". Some of them have been "adventuring" for over 5 years, and have been fighting constantly during that time. So in term of the actual players that defeats him, that is not so weird.
And if i do not remember it wrong, when you beat lich king, it is not the actual players that defeat him. It is that human paladin with ashbringer (i cant remember his name), and the ashbringer happen to be a very powerful weapon, that can defeat lich king, so the lore actually make sense.
You could also think of it this way:
Lich king havent fighter for years, he have only "invited" people to the scourge. By that i mean death knights, etc.
And everyone gets weaker in the end.. I know its sad, but it is true..
I think lich king is a great character, and i think the same about all those main characters. But in the end, they have to leave, they can not live forever, and i guess it was just time for them to go. And Deathwing is more powerful then lich king anyway, so if we didnt kill lich king, it would probably end up with deathwing killing him...