I do not think the number of members, or missions, or wards, or stakes, or temples is the right measure of the strength of the church. The strength of the church is the strength of the families in the church. If church member families are becoming stronger, the church is stronger. If the families are weaker, the church is weaker. Everyone gets excited that we have more members. I will be excited when we have fewer divorces, dramatically decreasing pornography problems, more stay at home moms, and more couples that want all the children the Lord will send, less birth control, less feminism, fewer men waiting to marry, and fewer couples waiting to have children until a couple has enough other things.
Yes Joseph Smith is right that the truth of God will go forth boldly, nobly, and independent.
But, sadly, yes we will also reach the point described in the last half of second nephi thirteen.