I'm always amazed at how little Critics of our Church actually know about our Church, the gospel, or the bible, yet they think they can come on here to school us.
If you notice below the Twelve as a quorum are equal in authority to the Presidency of the Church. So when the President/Prophet dies or the Presidency is disolved, then the 12 Apostles instantly take over the Leadership of the Church, and they are then the ones to elect a new President when all 12 are present and in agreement.
THE TWELVE CHOOSE BRIGHAM YOUNG!
Any claim by anyone outside of that process which God revealed to Joseph Smith, are erroneous and they will become apostates if they persist in their claims
D&C 107:22-24
22 Of the Melchizedek Priesthood, three Presiding High Priests, chosen by the body, appointed and ordained to that office, and upheld by the confidence, faith, and prayer of the church, form a quorum of the Presidency of the Church.
23 The twelve traveling councilors are called to be the Twelve Apostles, or special witnesses of the name of Christ in all the world—thus differing from other officers in the church in the duties of their calling.
24 And they form a quorum, equal in authority and power to the three presidents previously mentioned.
The "Utah Mormons" said no such thing, you really need to stop getting your information from AntiMormon sites.
I think what you are referring to was a blessing by Joseph Smith jr. to his son Joseph Smith III.
THIS WAS A PATRIARCAL BLESSING OR A FATHER'S BLESSING, IT WAS NOT AN ORDINATION!
Anybody in the church knows that such blessings are dependent upon the person remaining worthy to receive it and the Will of the Lord. It kinda goes without saying that when Joseph Smith III took over control of an apostate group, then he was no longer worthy for the blessing given to him.
FYI... there were at least three such blessings given to three different people by Joseph Smith. All of them apostatized and therefore forfeited any blessings given to them.