A scripture passage that was fulfilled despite looking on the surface as though it wasn't

In the Book of Mormon, 3 Nephi 21:9-10 says

For in that day, for my sake shall the Father work a work, which shall be a great and a marvelous work among them; and there shall be among them those who will not believe it, although a man shall declare it unto them. But behold, the life of my servant shall be in my hand; therefore they shall not hurt him, although he shall be marred because of them. Yet I will heal him, for I will show unto them that my wisdom is greater than the cunning of the devil.

This statement appears to be about Joseph Smith, Jr. But it says he wouldn't be "hurt," and Joseph Smith, Jr. was murdered by a mob in 1844 in Illinois. So wasn't this prophecy not fulfilled? Also, how can one be "marred" yet not "hurt"? That seems logically impossible.

The meaning of "mar" is 1) to ruin or diminish the perfection or wholeness of : spoil; 2) (archaic) a) to inflict serious bodily harm on; b) destroy. (See https://www.merriam-webster.com/dictionary/mar.)

Joseph Smith, Jr. repeatedly had serious bodily harm inflicted on him. He was never "perfect," so the first definition about "diminishing perfection" seems inapplicable to him.

My enormous old dictionary, in its etymology and meanings for the word "hurt", points to a lesser-known definition of "to hurt" as meaning "to check" or "to hamper" (see the 2b definition):

As we know from hockey, checking is blocking, not necessarily injuring (see definitions 5 and also 6):

The inclusion of abating as a synonym of checking is interesting. "Abate" is a strong word in its most common legal and construction usages, meaning to nullify or get rid of. See https://www.merriam-webster.com/dictionary/abate.

The "check" meaning of "hurt" is kept in the first definition of "hurter":

I think this Book of Mormon passage above is saying that Joseph Smith, Jr. would be marred--both in the sense that he would suffer serious physical injury and that his work would be tarnished and slowed down, including by his unjust death--but that he and his work would not be entirely blocked. It has taken 200 years now, but his main work--the bringing forth of the Book of Mormon--still continues. The Book of Mormon tells the world that Jesus was divine and that he really rose from death (not just a chemical stupor like the fictional Juliet in Shakespeare's play Romeo and Juliet) and visited his "other sheep," i.e., people in the Americas.