Hard to say. None of the Mormons I talk to have expressed what appears to be shame regarding those men, although none defend it. Nor do those Mormons I talk to seem to hold the same views of things as you say the church requires of them. While I don’t agree with their beliefs, I believe these people to be honest.
As they are all happily and mongamously married, and faithful to their wives, and loving to their children, I can hardly agree with you that they are identical in practice to the FLDS who is accused of polygamy, statutory and straight-on rape, and child abuse.
I cannot speak for the Mormon church in general, or any specific member other than those I know. So I am only offering anecdotal evidence, but I see no evidence to lump them with FLDS. If you are speaking theologically, I have no opinion in that regard, only in the practical, worldly view.
What exactly do you call sex with teenage polygamous wives (that Joseph Smith, Brigham Young, other Mormons engaged in)?
Additionally, Joseph Smith was in the Carthage jail on charges of riot and treason stemming from his ordered destruction of the Nauvoo Expositor press. Smith ordered the destruction of the press because they had printed the truth about Smith, including his polygamous relationships. Were Smith's actions, here, moral and upright?