"She skipped me, Jonas thought, stunned. Had he heard wrong? No. There was a sudden hush in the crowd, and he knew that the entire community realized that the chief elder had moved on from eighteen to twenty, leaving a gap." This similarity was a good choice by the author because it showed Jonas' panicky state of mind as he realizes that he might've not been assigned an assignment. Also, this scene shows that how even the community was shocked when Jonas was skipped.
"He killed it! My father killed it! Jonas said to himself, stunned at what he the was realizing. He continued to stare at the screen numbly." This similarity was a good choice because it demonstrates how Jonas has become fully aware of what "release" really is. It shows how Jonas is feeling a sense of sadness because he now knows that his father lied to him.
"But it was necessary because it had the child seat attached to the back. And he had taken Gabriel, too." This similarity was a good choice because it clarifies that Jonas feels emotions. He has gained a strong enough love for Gabriel to take him on his trip instead of leaving him with the community who will release (kill) him because they have no feelings.