I don't think anyone is saying that they can't still do dmg, my point is that the juice is no longer worth the squeeze. A black mage is far better than a ranger now, theres no denying it.
The reason a ranger was so pwnpwn before was because of rng/nin, they did insane dmg from point blank & a distance equally, and when they drew hate, they just ended up tanking until the actual tank got hate back. RNG/WAR loses that ability in order to hit the old dmg, so its just not as effective as before. It still works, but theres other more viable options.