QML syntax does not allow bindings on property declarations

If you write QML such as

property bool bar: false
property string text: bar ? "hello" : "world"

,
the variable "text" will be evaluated as a binding. However, it is not allowed to type a multiline binding in a block, such as

property string text: {
    return bar ? "hello" : "world"
}

Because bindings are allowed for QML properties, this limitation seems artificial and only dependent on the syntax of QML. If possible, it would be great to have it removed to make the language more consistent.