It's an old guide -- almost 3 years old -- and obsolete. The information is valid, but no longer relevant.
Even when it was, people still did not typically have hunters pull. This sort of pulling style was EXTREMELY commonplace in Everquest, but there are three critical differences between WoW and EQ.
#1 - Feign Death has a timer of only 8 seconds in Everquest, reduceable with what passes for talents in that game.
#2 - The class with Feign Death can actually take a little bit of a beating -- there's no such thing as a heroic instance, and tanks aren't SOOO much better at tanking than non-tanks that the other classes outright so squish.
#3 - Instance mobs in Everquest, (or rather I should say dungeon mobs since they don't have instanced dungeons,) are not hard-linked. In WoW, even if you managed to separate one mob from its group, if you get it's attention, the rest of the guys come running. In Everquest, it was all about whether or not he was close enough to call his friends like outdoor mobs in WoW work. As a result, the game was all about fighting single targets at a time.
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Only the exceptions can be exceptional.