You're contradicting yourself, aren't you? It's not a given that it will be "dumb."

Perhaps I didn't express myself clearly, but if the AI is slightly modified, removing some obvious flaws, it won't help because other flaws will emerge, which can then be exploited. And there's no point in that, and it's impossible to do it well because:

This is the key point here. I simply don't believe in the feasibility of this idea. Although I would really like to.
It's like comparing chess to space travel; the game is truly famous worldwide, and many companies like IBM have tried to demonstrate their power in it. If a group of enthusiasts can make an improvement/fix to the AI in Heroes, that would already be a great achievement.

It just happened historically. And many have convinced themselves that it should be this way. But why?
If there were a real choice in practice, I wouldn't even discuss this issue.
Whether to wait for the opponent's moves or to rush in with a large army, even if it's not as experienced as a human player.

All tournaments have been and will be held in a human-versus-human format. If the computer "suddenly" starts playing better than a human (as in chess), the game will turn from "who got luckier" to "who played better than the computer" – that is, with well-known strategies like 8mm6a, it often won't even come to contact with a human, and sometimes it will all end even earlier, in a battle with neutral creatures. For offline tournaments, it would be great! But who will play them if no one is playing them now?