To explain the universal issue we are often referring to a teacher and his/her students.
Let us imagine that a teacher (God) has an hour (everlasting) class to show his students (humans and angels) how to fix a broken clock (to reign).
One student (Adam) says he is able to fix it better independently, without the teacher's help (universal issue).
The teacher let him demonstrate that in front of all the others, but instead of an hour lesson he gives him only 5 minutes (death after a limited period of time) and he blocks one of the student's hands behind his back (imperfection).
If I were one of the other students watching I could think: but those were not the initial conditions the student was in when he said he could, and what would have happened leaving him more time and both hands free?
Am I crazy?