If you want a completely open world, go play a simple play-by-email roleplaying game. BattleMaster has restrictions on what you can do because it's a different kind of game.
It would help if you read the quoted text, Anaris. I was referring to 3 specific restrictions mentioned by Velax. BM needs some structural limits, though I think you'd agree that sometimes limits don't serve their intended purpose very well or at all.