Why did impotent man want help to get into troubled water? Why did Jesus not help him into troubled water?

Read this very carefully... (John 5:4 For an angel went down at a certain time into the pool and stirred up the water; then whoever stepped in first, after the stirring of the water, was made well of whatever disease he had.) He was trying to get into the pool to be healed but another sick person always beat him to it. The first person to get there was the only one healed.