Guys, you're all right about what you're saying here, but don't forget that the introduction of the Dwarves has completely changed things; many are already saying that the Dwarves are an overpowered race due to their runic magic.
Yes, I agree that the Dwarven castle is designed for defense, but is that all it's meant for?
As soon as a new race appears, everyone starts focusing on it and listing its advantages, but they forget about balance. And who suffers the most? Of course, the new race, because the developers are trying to stabilize the balance, and then it becomes "they wanted to make it better, but it turned out like always." Remember Heroes of Might and Magic III and the Elementals – the Forbidden