Is ‘Dignitas Infinita’ the Document the Church Needs?

In any case, Dignitas Infinita articulates a number of claims about human persons. What we gain by thinking of these claims as a reassertion of the Universal Declaration of Human Rights is not clear. For me, at least, it would be more persuasive if the Church were to speak in its own voice. And if it did—if the Church tried to say no more than can be said out of its own confession—I think Dignitas might take a somewhat different shape. How so?