The world of Might and Magic – the world of NWC – is now dead in Heroes 5.

On the Nival website, they told you not that "the plot is not the main thing," but that "it's good that the world and the plot will be more serious." There were other arguments, but this was the main one.

No, they told me exactly that. But not you specifically.
I have nothing against the new world.
Let the gods in it be dragons.
Let there be no old heroes there.
But let this new world live according to the laws of John Van Caneghem. The only thing Nival should have done was to preserve the Might and Magic universe. This means that dragons should have been created by the Lord of the Air. And Inferno should have been the Krigans.
The game is called not Heroes of Might and Magic New Age, but Heroes of Might and Magic V. Since there is a 5, you need to play according to the laws of the genre, and not come up with your own ideology.
What would it be like if, in the 3rd episode of Star Wars, Lucas had deviated from the Jedi and made a movie about terminators:eek: This is what Nival did with the heroes. It is not so difficult to fix the plot, if there was a desire. Someone doesn't have it.