Aliasing root item property gives 'Avoid referencing the root item in a hierarchy' warning

When one tries to alias a root item property, he/she will be greeted by such warning:
Avoid referencing the root item in a hierarchy (M402)

A snippet to reproduce the warning:

Rectangle {
    id: root
    property alias backgroundColor: root.color <- Here goes the warning message
}

The reason of aliasing root item property is to, for example, giving the property a better/more descriptive name. I think it is a valid use case.

A result from https://codereview.qt-project.org/c/qt-creator/qt-creator/+/390841