Everyone is entitled to their own opinion. But I am equally entitled to disagree. Another WoW blogger recently wrote this comment…
unless the tank is entirely unfamiliar with the instance, or just doesn’t know how to assign CC and pull properly (in which case they’re not a very good tank anyway), there’s no logical reason for anyone other than the tank to be leading. Any decent player should know this, which is why mister I’m-a-DPS-class-but-want-to-be-leader will typically fail in every role they’ve assigned themselves in the first 20 minutes.
Now I’ll agree that the tank should do the pulling, unless you happen to have multiple hunters using a misdirect rotation. However, I object to the idea that a tank should do the marking by default. What makes a tank more able to click a raid icon than anyone else?
Marking targets has nothing to do with tanking. Zero. It has everything to do with understanding the CC capabilities of all of the members of your group, as well as knowing the abilities of the mobs being marked. That knowledge is certainly not exclusive to tanks. A good leader/marker knows how the traps, saps, sheeps, seduces, fears, banishes, shackles, cyclones, mind controls, hibernates, and tanking work, and can make rational and informed decisions about their use. Tanking is just one more form of CC. It doesn’t give any amazing insight into how to set up a pull.
The act of marking targets is simply placing a raid icon over mobs. It doesn’t take a tank to do that. In fact, I think that anyone that assumes a tank is best suited for it just because they are a tank is probably missing out on some innovative and effective pull strategies.

