Organic growth is not an option for him, so he must grow the Church by acquisition. The Apostolic Constitution is part of that acquisitive strategy, aimed less at dismembering the Church of England than at bringing home Catholics in America and Australia; but even more significantly being tested as a tool ahead of bringing others, such as the ultra-traditionalist and schismatic Lefebvrists, back into the fold. Benedict wants to consolidate orthodoxy wherever he finds it and, eastern Orthodox patriarchs should note, there can be only one voice of authority and it speaks from Rome. This Pope is on a reactionary and Counter-Reformational rampage.
...you say that like it's a bad thing.