Round table

I’m not saying it doesn’t give anything. I’m saying that viewing castles doesn’t give much. You see that the opponent has so many troops garrisoned in the castle, you think it’s weak, and you go for a rush. And right next to the city, there’s some Crag Hack on uncounted angels, and he’s smiling.
Viewing a hero’s artifacts also doesn’t give much, except for additional information. If you see that the opponent has the Armageddon’s Blade, and you have nothing to counter it with, you can reconsider, but it won’t change the balance of power.