I'll have to remember that about companions, but it's still ridiculous... I was actually going to post about the impossibility until I found this. The only reason I'm still trying is because I want the "Leader of the Pack" tag, but at this point, the dungeon isn't fun anymore.
Hero: "We will not stand for this 'character deletion' that heralds our doom! We shall stand and fight, heroes of Neverwinter! We will lay siege to the Temple of Game Developers! We shall --" Higher Powers: [Delete]