The Monster Manual racial descriptions were never intended to be the canonical mechanics for those races. As the MM itself states, those stats are for DMs to create NPCs. You can use them as PCs, but a DM allows them at his own peril.
Thus, you'll see things like giving monsters oversized weapons and not giving them to official PC races. As others have pointed out, oversized weapons in PC hands are simply too good. It makes those races strictly better with weapons. If a PC race somehow gets it, expect it to be errata'd as soon as I see it.
Thus, you'll see things like giving monsters oversized weapons and not giving them to official PC races. As others have pointed out, oversized weapons in PC hands are simply too good. It makes those races strictly better with weapons. If a PC race somehow gets it, expect it to be errata'd as soon as I see it.