No, it is true, we don't have the benefit of Gods perspective.
And fore we don't have that, it is extremely easy for us to claim God has a plan or reasons for what he does.
And what I also wonder is if you are objective when you laugh at the errors in the book of Mormon, or when you shake your head on the Qu'ran.
I could laugh at the Bible as well. A worldwide flood covering the entire globe, hahaha. Dinosaurs living with man, hahaha. The entire universe created in one day, hhahahahaha.
You either find (unlikely..) explanations for that, or you say it was part of Gods plan, or find that explanation from the Bible that might suit your view.
Don't the muslims or mormons do the same?