I am satisfied with the current size of the battlefield (perhaps because I am not a fan of Haven). All 7 native units fit, and if you want to keep someone in reserve, that's also possible. You can fight with those who are most needed in each specific case. I don't see anything unreasonable about the siege and defense of castles (unless for a player who wants to take cities with Paladins or Treants). There is magic and flying units, even if the catapult is destroyed immediately. By the way, Haven also has griffins that can dive from any distance. And for those who don't see how to fight against Inferno, I can advise them to cast Armageddon as early as possible (stacks are smaller, and gating is also smaller, and in terms of HP, Inferno is not the best).