You are, of course, entitled to your opinion. In this thread, no Catholic has denied (that I recall) that the Irish Church has lost credibility. As widespread as this horror is, it would be polyannish, naive, unrealistic, etc., to assert that the Church’s credibility has NOT been harmed (separate from Her impeccability and Her ultimate triumph as the Bride of Christ, as per His promises concerning Her), and throughout the world, not just in Ireland.
What most Catholics in this thread have asserted (and I think any reasonable person would agree with them) is their astonishment that Rowan Williams, this particular Archbishop of Canterbury, would dare to offer commentary on any other Church or ecclesial community, given the apostasy into which the Anglican Communion, at least in the West, is drifting and given his own inability to take an effective stand (he dithers, when he says something, it doesn’t really mean anything). That opinion is shared by most of the orthodox Anglicans I’ve read of who are offering opinions. I know that the position of our Pope and their “instrument of unity” (talk about dithering) is different…and I thank God that it is. Even though Thomas Cranmer was a heretic and schismatic, he had, at least, the courage of his convictions, that lead him to thrust the hand with which he signed his recantation into the fire that burned him. I don’t see the 104th Archbishop doing the same, because if he has any conviction, it’s that everybody can be made happy.