"What is Anglicanism?"

Catholidoxies cites an article in First Things by Archbishop Henry Luke Orombi of Uganda on "What is Anglicanism?" Unfortunately, the article is not yet up, but in an excerpt from it, ++Orombi says:

We would not be facing the crisis in the Anglican communion if we had upheld the basic Reformation convictions about Holy Scripture: its primacy, clarity, sufficiency, and unity. Part of the genius of the Reformation was its insistence that the Word of God and the liturgy be in the language of the people -- that the Bible could be read and understood by the simplest ploughboy.

And Catholidoxies goes on to ruminate:

One wonders, however, if the cause of the Anglican troubles aren't a failure to uphold Reformation distinctives but those Reformation distinctives themselves. I do not doubt that a simple ploughboy can be *nourished* by Scripture. But is it really clear in and of itself?

. . . Scripture might be infallible and inerrant, but certainly none of us as an interpreter is. Interpreters can err; who shall then judge between competing interpretations?

. . . But without a competent teaching authority (either Orthodox consensus or the Catholic Magisterium), it is useless, having a nose of wax to be shaped by each as he or she sees fit, even in good faith.

This is something I've been wrestling with myself, and I need to do a lot more reading of history and theology in order to understand it. Does the Protestant edge of Christianity have within its core understanding its own inevitable fissures that crack the entire edifice apart under pressure?