Well, carefully examining the lyrics will entail total unadulterated worship of Joseph Smith!
Even if Joseph Smith never did all the evil deeds he did, he is not worthy of worshiping. Doing so goes against "Thou shalt have no other Gods before me"!
Just because the Mormon Prophet was killed, and he happened to mean a lot to Brigham Young, doesn't mean that Church Leaders have the right to create oaths of vengeance, and hymns that go beyond simply revering a "good man".
(to be continued...)