If Mormons consider the Book of Mormon to be a direct word from God's mouth to Mr. Smith's ear...then, "yes." The Book of Mormon is NOT Scripture.
As such, the Book of Mormon is considered to go hand in hand with the BIble in testifying of Christ. That is its purpose. "In the mouths of two or more witnesses."
That is how the LDS faith views the Book of Mormon, believing that both are scripture.
Not looking for contention, just explaining the faith.