Apologies that you feel this was derailed. I thought it was a great conversation starter for clarification of private property. I did agree with you that the review flow should indicate this in my first comment. And I also thought that good questions came up for a post in Review Support that is titled: Clarification on “private property”
In the future, you can flag any comments that wander off your intended subject matter as being off topic. What I would recommend doing is making a post in Bug Reports & Technical Support explaining that the “private property” rejection reason is misleading and needs to be fixed.
Here is an example: Upgrade notice needs rewording