Answer:
Step-by-step explanation:
Question One
He could have read other sites with other points of view and summarized that. Most importantly he could have used footnotes that gave credit to every idea that he used.
He could have put the material down and begin to write. The words would have come out in his awkward style. He would still need to footnote the ideas. That is most important.
Question Two
It is both. Plagiarism is a serious crime if it involves many people being affected by what he wrote.
But it is totally unethical at any level. Trying to pass off something that isn't yours is totally unethical. It should never be done. It shames the subject which is shown to be unimportant and it shames the instructor (he knew enough to catch the plagiarism), and it shames the person getting caught.