While critical of the Church, Frank J. Cannon did acknowledge that Jesus has a more important role in Latter-day Saint theology than Joseph Smith (oddly enough, the claim still persists, including among those frauds at Reachout Trust
[The average Mormon] is taught that, next to Christ, Joseph Smith,
the founder of the faith, has performed the largest mission for the salvation
of the world; that in the councils of the Gods, when the Creator measured off
the ages of the human race on this earth, to the Savior was apportioned “the
meridian of time,” and to Joseph Smith the Prophet, was given the “last
dispensation,” which is “the fullness of times,” in order that the world,
having apostatized from the atonement and the Lord to bless each and every one
of us is my prayer in the name of Jesus Christ. Amen.” (Frank J. Cannon
and Harvey J. O’Higgins, Under the Prophet: The National Menace of a
Political Priestcraft [Boston, Mass.: The C. M. Clark Publishing Co.,
1911], 379-80)