your questions regarding the game rules (improving the interpretation).

I disagree with Gomunguls that such a violation should result in a technical defeat.

By the way, this point should also be discussed in the rules; I don't think it's a completely fair solution in this situation.
But our rules don't have clear guidelines on what constitutes a technical defeat and when a game can be replayed. And as far as I remember, in most controversial situations, violations resulted in losses.
Also, here he revealed the parameters and mana of my army by attacking a hero. So, if we replay this, he will already have additional information.