Everyone makes mistakes. No one is perfect.
That said, if you were god and you were going to trust bringing back your church, would you trust such an important job to someone who believes in magic? Would you trust that important job to someone who had been convicted of treasure seeking? Would you trust someone who had been convicted of conning people out of money by telling them treasure can be found on their property through seer stones? Then, those same seer stones are put in a hat and used to translate a magical book? Even according to the church records, this is what happened: http://byulaw.blogspot.com/2005/09/joseph-smiths-arrest-records-found.html
Now, the modern day church shows photos of Joseph looking at golden plates and then translating them. However, all first hand reports say he actually put those same seer stones he used for treasure hunting into a hat and that is how we have the BofM today: (church friendly sources)
The question remains, then, why does the modern day church go out of its way do deceive its members? It depicts Joseph as using gold plates to translate the BofM through photos and stories when in fact there is no documentation to support this.
Joseph was convicted of treasure seeking.
Joseph believed in magic stones long before the advent of the mormon church.
It is time the believing member were made aware of these facts.