I hear you, Duke of Gloucester, and you may well be right, and this is nothing more than a light-hearted thingie. However, others may see it differently, and may interpret it differently - in a more imperative manner.
The problem is that this impetus to make our kids do less for fear of hurting their fragile egos or what not already exists, and things like this, as light-hearted as they may be, find too much resonance in the hearts/minds of the proponents of such movements.