My initial impression (limited by the fact that I am still not all that familiar with Mark Driscoll and his other views) is quite positive of the position taken in his article. I especially identify with the following observation...
If both doctrine and practice are constant, the result is dead orthodoxy, which the Relevants, Reconstructionists, and Revisionists are each reacting to in varying degrees. If both doctrine and practice are constantly changing, the result is living heresy, which is where I fear the Revisionist Emergent tribe of the Emerging church is heading. But, if doctrine is constant and practice is always changing, the result is living orthodoxy which I propose is the faithful third way of the Relevants, which I pray remains the predominant way of the Reconstructionists.As IMB missionaries working in foreign fields, my read is that a good many of us are engaged in a dialogue marked by a tension between the "relevant" and "reconstructionist" streams. As cross-cultural workers, we cannot escape the need to be continually more relevant to the context in which we minister. In some cultures, this need for relevance is experienced in a different cultural milieu than the postmodern one addressed by the Emergent Church movement. In Western Europe, postmodernism is omnipresent, and, as a result, a whole lot of the Emerging Church discussion is very applicable for us.
With New Directions at the IMB, especially in (but not limited to) Western Europe, there has also been a lot of discussion related to new ecclesiological models, such as the "house church" or "simple church". Some missionaries, it would appear, have either crossed the line or are very close to crossing the line to what (if I understand Driscoll and Stetzer correctly) I would call a more "reconstructionist" approach.
My concern, as I think on the metaphor of "loving each stone" and "rebuilding spiritual Zion" is that this "reconstruction" not be undertaken without due appreciation for the larger context of the "building" which has gone on before, as well as that which is going on at present in other "sections of the wall", as it were. To be more specific, I have heard as part of the "simple church" presentation the encouragement to guard new believers and new churches from exposure to older, more traditional models of church, in order to avoid what is termed "contaminated spiritual DNA".
While it is definitely true that we want the new believers and churches to have good models, and to learn evangelism, discipleship, and multiplication as a way of life from the beginning, I am concerned by a tendency of some in the "reconstructionist" stream towards isolating themselves from the larger Body of Christ around them. Here in Spain, for example, it has struck me as signficant how few Spanish evangelical leaders seem to be ready to "jump on the 'house church' bandwagon".
I am by no means meaning to denigrate "house churches". But what I am implying is that it seems to me that when the Holy Spirit moves, in addition to bringing fresh winds of revival, and, at times, new structures and cultural expressions, He is also very concerned with unity in the Body of Christ at large. And, if we, as God's servants, are truly sensitive to His Spirit, we will have a heart for unity as well.