The trouble with this theory is that if the MSQ is our true 'teacher', then characters should only be able to level one combat job, a la World of Warcraft. The minute you start leveling another job without the MSQ's guidance, you are essentially no better than the 'noob' in question. You could argue that the likelihood of a player who has done the MSQ knowing how and where to look for optimization and rotation guides is higher, but that also makes the assumption that those who don't are incapable of this. While I personally agree that selling a set of heirloom gear would have been better than jump potions, it does not remove the flaws of secondary combat jobs and the likelihood that they will be played less optimally--unless the player decides, for some reason, to replace their main job or role.