The real maze would presumably be much safer and more straightforward, with fewer obstacles.

Well, since the maze went wrong, just about anything could have happened to the Unspeakables, maybe even worse torments than what Draco would devise.

Harry hasn't grasped all the magical theory behind the maze yet, for understandable reasons. (That's one reason the Pensieves are there). So I can't answer your question yet. :) Answers will be coming.

Harry's life would be much more comfortable, at the moment, if he could despise Draco.

Oh, there's a way to free Draco. The question is whether Draco will think it's worth the cost.

And thank you!