The first part of the post contradicts the second.
It doesn't contradict; read my previous post and compare. There's a subtext. The time limit and the screenshot are analogous to the current chess time limit and memory. In Heroes, it's impossible to remember everything very accurately due to the huge number of saved games and the long break between them, as well as the variety of templates and maps, but it is quite possible to remember them when starting the game within a certain time.