"Along with the anxieties over wandering away from theological orthodoxy, another panic point in the house church conversation among Lutherans is presiding at communion. ("Panic point" is a bit condescending... sorry about that. Couldn't resist the alliteration.) Case in point, Clint Schnekloth posted a comment about the "Babylonian Captivity" of the Eucharist expressed in our extreme avoidance of having non-ordained people preside, and it's elicited over 500 comments in just over 2 days. That's called touching a nerve."
"Our theology staunchly affirms that the validity of the sacrament is NOT dependent on who presides. Yet our practice consistently and powerfully contradicts, and IMO trumps our theology in the minds of laity and many clergy."
"The "good order" standard is a huge leverage point I think we need to lean on as much as possible. It's one of the greatest assets of Lutheranism, because it points us to the importance of pragmatism. When I look at the entirety of our congregational life - everything from these kinds of presiding questions to the huge investment in large group weekly worship - I just keep asking; just how good does anyone think our current "order" is??? Blessed as we are with hugely valuable insights in theology, our key temptation is to evaluate "goodness" solely based on theological concerns. Meanwhile, our practice for shaping lives that enflesh the richness of our theology is manifestly ineffective."