So, shouldn’t the church be able to answer all of these questions?

Yes.

The problem for the church comes from point 14 above. Ideally, the LDS church could carry on in the current manifestation. Free all of the historical baggage that it carries. The many members of the church that are active today are largely not aware of these many issues, and would love to carry on, actively engaged in the modern church. However, for many progressive Mormons, (this author included) it is difficult to separate the current church from the old.