Should I add a non-requested work to my major revision of a scientific journal paper?
As somebody in a different area of computer science, I find it hard to see how including a little more true, relevant information could possibly be harmful. The reviewers think your paper is worth publishing with revisions. The worst case I can see is that, when you submit the revised version with this extra unsolicited material, the referees ask you to remove it again.

You can always mention your parent's opinion to your co-authors and see what they think.