So I found a path into the underdark through the goblin camp into an abandoned temple for the followers of Selune. After disarming the trap set on the main gate I decided to try luring the two Minotaur's that attack you afterwards to the gate and letting the defenses do the work. I turned on the trap again sending power to the red ruby gems which, I had hoped, would burn the Minotaur's outside the portcullis. I had my casters on the second level overlooking the walkway to expedite the process and let Astarion bait the Minotaur's in then shut the portcullis. The Minotaur then proceeded to not get hit by the trap for no reason, then jump through the portcullis on top of Astarion to knock him prone, then beat him to death. The second Minotaur, also ignoring the trap, walked halfway up the walkway to the portcullis and jump to the second floor rampart landing on both of my casters. I understand it's a big monster and could make the second jump, but the first jumping through the portcullis without fighting through it or going around it is broken. Also as a side note, the portcullis has very similar health as a standard wooden door in the goblin camp. It should probably be stronger than that.
