Some analyses of the "welcome home" party being thrown for dissident Anglicans refer to the pope's invitation as the culmination of ecumenism.
That sounds to me like calling the invasion of Iraq a product of the peace movement.
Ecumenism implies good will and mutual respect. The gallery of historic Protestant churches (silly me thinks they're actually churches) have trooped to reconciliation talks with Catholics for decades. They come up with wonderful agreements and lasting friendships. When these accomplishments get to Rome, however, they have been either called deficient or reduced in importance.
The green light to angry Anglicans is, therefore, indicative of a general disrespect Rome shows toward the rest of Christianity. The price of dialogue is capitulation to the Roman Catholic Church, pure and simple.
The Reformation churches have reason to be furious at this slap in the face. They've played the part of fools in thinking ecumenical talks meant something other than surrender.
Christians have always played one-upsmanship, of course. One group lords it over another, regions square off and disputes go on, as we know, for hundreds, even thousands of years.