I'm sorry you didn't enjoy it. My comments on what you said:
Story
For me, I agree that the story is pretty lame, but at least you don't have to suffer through it as you would in a game with lots of cutscenes. You can just click through the text if you want to.
Originality
No, it's not an original game. So what? For me a game has to be fun, not original. And this game (for me) is insanely fun.
Lack of Intro/Cutscenes
Not an issue. If I want 'cutscenes' I will watch a movie.
Variety between Lands
Darion is the best land, I agree. It is amazing. Freedom Isles looks amazing but turns out to be a bit of a grind. Kordar is my least favourite, but what's the problem with Ellinia/Land of the Dead? Plenty of detail there. Haas' Labyrinth is interesting (but annoying to navigate) and Murock is poor. I would agree that Murock seems rushed.
Lack of Creatures, Lack of Abilities
What are you on about here?

There are dozens of creatures and abilities.
Weak AI
Yes, the AI is weak. But I would like to see multiplayer so that we could test the strategies that work so well against the AI on each other.
Flat, Boring Battlefield
TOTALLY disagree. I have been playing turned based strategy games for about 15 years (approximately since Master of Orion 1) and I say that this is one of the best TBS experiences in that time. Amazing battle world.
Only 3 Bosses
I will admit that its a bit strange that all 3 bosses are in the first half of the game. But when you think about it there are several other major fights (Karador, Baal, Bagud) but they are not 'boss fights.' I agree they could have been spread better over the game.
Talent Tree boring
Nope, disagree.
Spells boring
No, I love the range of spells in this game.
Rage spirits just for warrior
Um, no. This is wrong.
For me, some of your complaints are somewhat valid or true. But you are missing the central fact that keeps many people playing for over 200 hours. The game is insanely fun. The world is well constructed and full of interesting things to do. And most of all, the battle mode is one of the best TBS experiences in the past ten or fifteen years of TBS games.
