Why would apologizing for plagiarism and fabrication preclude you from facing sanctions for plagiarism and fabrication?

Is it “plagiarism” to misattribute hallucinated quotes? Not that a whole lot of sloppy, unprofessional shortcuts weren’t taken, but plagiarism doesn’t seem like the right word, as quotes are almost definitionally not plagiarism. But maybe these were paraphrasings masquerading as quotes, so maybe that’s the difference.