Should we ban the Griffin Conservatory and the Hive of Serpents?

Just because someone is a chess player doesn't mean they're a good Heroes player. For example, I always consider maxing out my units to be a good thing. In general, all this talk about how conceding gives the opponent an advantage and affects the game (I'm not denying that it can play a decisive role, but not more than 10%) is just whining. I can play with or without it. And I can even let the opponent look at the map at the start, not to the point where they're examining how many griffins are in the pack, but just to get a sense of the layout in a minute, and then continue playing normally.