Guys, remember one thing - this is a game. Not real world. In real world if you're hit by the big boulder falling from the sky - you're dead. Stop making arguments like "it's unrealistic". Games are unrealistic, they were unrealistic, and they will be. Because they're games.
Think of DO:S like you think of chess. Sure, you can go whine "HETMAN IS OVERPOWERED, WHY IT CAN MOVE SO FAR AND PAWNS CAN'T??? KNIGHT SHOULDN'T BE ABLE TO JUMP ABOVE PIECES, HORSES CAN'T JUMP THAT HIGH - UNREALISTIC!!!!!". But this is a game. You're trying to win, using set of rules creators invented. Same logic applies to D:OS. Surfaces work as intended, they're dangerous, they force you to think, they can completely screw you. You don't like it? You want something more realistic? You want real physics? Turn off the computer, and go out to play in the real world.
That's fine and all, but not only do I think it's unrealistic and unintuitive, I also feel it highly unbalanced and a poor design. So my complaint is about the gameplay. Fields of fire and poison should be deterrents, not no-trespassing zones you can liter that battlefield with. That is far too powerful for how easy it is to create them.
