The LDS position on choices and free will is that the whole point of this life is to prove whether or not we will, when outside of God's presence and unaware of His majesty, choose to follow Him. His plan is for us to exercise our agency, much like parents plan space and time for their kids to practice and learn walking.
Relevant quotes:
"Your Heavenly Father has given you agency, the ability to choose right from wrong and to act for yourself. You have been given the Holy Ghost to help you know good from evil. While you are here on earth, you are being proven to see if you will use your agency to show your love for God by keeping His commandments."
“Our agency, given us through the plan of our Father, is the great alternative to Satan’s plan of force. With this sublime gift, we can grow, improve, progress, and seek perfection. Without agency, none of us could grow and develop by learning from our mistakes and errors and those of others.”
“Because the eternal principle of agency gives us the freedom to choose and think for ourselves, we should become increasingly able to solve problems. We may make the occasional mistake, but as long as we are following gospel principles and guidelines, we can learn from those mistakes and become more understanding of others and more effective in serving them.”
https://www.lds.org/topics/agency/what-the-church-teaches?lang=engFrustratingly, if God intervened on the basis of 'this decision will have horrible consequences', the whole point of this life would be wasted. He will help people bear their burdens and be healed through the Atonement, but He can't thwart the entire reason He set this earth up. Well, He could, but then He would be changeable and cease to be God.
https://www.lds.org/scriptures/bofm/morm/9.19?lang=engOther relevant LDS doctrines: We believe we have a duty to relieve suffering, not increase it. Our baptismal covenants are to bear others' burdens, mourn with those that mourn, comfort those who stand in need of comfort, etc. It's our job to help those who need help, not to judge them - God is the judge and we shouldn't usurp that.