Your argument is based on me having used absolutes in my statements, which I haven't.
That said, I'd rather have another Hunter that can dispel enrages and MD at range and dps Lich King during transition than a ~1-2k damage boost to one person over the course of the fight. Also, no, it's not a flat 4% dps increase. It is a physical damage boost, and it isn't unique to Rogues. And no, it's not a fair comparison to make, "good rogue" vs. bad hunter.
So, yes, "nigh useless", as I said. The skill or effort level of the Rogue in question is irrelevant.