Chris Jones at The Chicago Tribune writes that the LDS Church has taken the jibes from The Book of Mormon musical quite well, compared to the more defensive posture taken nearly two centuries ago in Nauvoo, Illinois prior to the killing of Joseph Smith by an angry mob. That is true.
The early Latter-day Saints had been kicked out of so many places and been illegally targeted by violent mobs so many times in such a short period time with so little protection from the government which promises equity and justice for all that one can understand their defensiveness. The problem is that some of the their actions were not in line with the gospel of Jesus Christ. Jesus Christ taught to turn the other cheek.
The LDS Church as an entity is better at that now. Besides, people are more likely to listen to you and/or respect you if you keep your cool even when faced by deliberate and despicable provocation (thinking of the early Saints there, not the musical). Proverbs 15:1 in the KJV reads "A soft answer turneth away wrath: but grievous words stir up anger." Thus the official LDS Church response in the each Book of Mormon program is, "You've seen the play, now read the book."