Once again, God is not dependant on people like Mannasseh or Moses (he never was, it was people who needed visible kings and leaders). Therefore, the entire premise of the Watch Tower Society of being God's channel of communication, God's only true organisation on earth to which people must come in order to receive salvation, is an Old Covenant idea.
And no matter how much time and effort the Watch Tower Society spend in trying to prove to people that they need an Old Covenant structure to follow and obey, it doesn't change the fact that we aren't to worship in this place, or in that temple, but rather to worship in spirit and truth, being guided by the Holy Spirit, with God's laws written on our hearts; in other words through the New Covenant.
God isn't going to restore truth to the Watch Tower Society; it didn't have it in the first place.