non sequitur

Reader's Digest 4月号の記事 'Threats Modern Parents Tell Their Kids' からの抜粋です。
"I'm going to leave non sequitur, embarrassing comments on your social media posts."
"non sequitur" は難しそうな表現ですが、子供に対して使うのですからネイティブには常識に違いありません。辞書を見ます。
・Oxford English Dictionary: A conclusion or statement that does not logically follow from the previous argument or statement.: The professor hesitated for a moment, slightly confused by the question, which seemed on the face of it to be something of a non sequitur.
・Collins Dictionary: A non sequitur is a statement, remark, or conclusion that does not follow naturally or logically from what has just been said.: Had she missed something important, or was this just a non sequitur?
本当に大人が子供に言う台詞ですかね？