The TL DR version is that I've seen a lot of kills right at the enrage timer, and wipes due to enrage timers.
The main cause of wipes that I've run into isn't that tanks that can't take the damage, it's DPS inadequacies that are causing fights to be prolonged past the endurance of the healers, if not running into enrage timers outright. With that in mind, I would give this to a DPS over a tank in a heartbeat. Over a Cookie's Tenderizer, the tank is gaining 11 hit rating, 11 mastery rating, and 25 stamina.
Since hit is a threat stat and not really a survivability stat, this weapon is contributing 25 stamina and 11 mastery over something like the 346 version of the Elementium Fang, and losing 86 parry rating. With tank threat not really being an issue, what you're really weighing is the extra survivability stats of this sword against whatever weapon the tank is already using. Comment by KhizanAs far as the Tank/DPS argument goes: