You sure about that? I've found a total of 4 legendary items ever and one wasn't even for the class I was playing and the other turned into a mote of light (which can't happen anymore, but this was before that). Now, I have both specs leveled completely and all my welfare epic armor (along with an exotic helm) fully leveled. Me and RNGesus aren't exactly on friendly terms. I have terrible luck in loot games. If it wasn't for some savvy shopping on the AH in D3, my thousand+ hours would have had me entirely in rares, and not particularly good ones either. I feel I earned his scorn when I got fill BiS for the cheap DKP in Wrath of the Lich King, got my Invincible and /gquit, sold my gold and uninstalled.
And frankly, at this point, I don't have the time to grind out 50 of each upgrade material to get leveled. The raid starts at 26, what level do I have to be before I can do that?
And, if you do think so few people just aren't putting in the time, you don't understand how end game content works on MMOs. You're lucky if 20% of the total population can get to it.