I have to agree. He doesn't sound like a great tank but honestly, Stone Vigil is one of the few (only?) dungeons with frequent and powerful patrols that can easily wipe your party. It requires high awareness and is quite stressful on tanks/healers.
Also, DPS marking is not even that unusual. I will frequently as a DPS mark high priority targets if the tank doesn't do so, and I won't hold it against that tank because it's everyone's job to make a run as smooth as possible. Nothing but common practice dictates that marking is the tanks job and if you are sleeping targets the priority is on you to mark what you slept so no one else touches it.
