I did the leve last night, maybe it was more my luck, but I saw Bardi staying mostly in the back of the room, In pulling the mobs a ways away, you could complete the leve.
As far as fighting Bardi after completing, I had more trouble with the yarzon spawns, which I have no problem with in terms of making the fight hard (I mean, its not the first time such things happen...).

Also, In the leve, the previous areas re spawn with mobs, so you can backtrack and take them on, hassle free.

Just giving my take on the leve. He would be quite a hassle if he spawned at say, the door and stayed there..