It's not that non-university students are immoral or stupid. The article says nothing of the sort. Plagiarism is a basic lesson of university students on day one. You're being too sensitive.

The unsaid connection the author is making is that universities have honor codes that get drilled into you from freshman year. Those honor codes have very specific definitions of plagiarism, usually with examples. Only an idiot, lazy, or jackoff university student would plagiarize word-for-word thinking that a font change is good enough. That makes the university student 100x "stupid-er" than a non-university student that figured out what plagiarism is through intuition. :)

edit: slight wording changes.