It’s an interesting article, but I do have one nit to pick:
Why are megachurches and formerly iconoclastic mainline denominations looking more like Catholic parishes in terms of liturgy and practices…
This is kind of a mixed or unclear expression. Iconoclastic might infer Baptist / Charismatic sorts of churches, often home grown US institutions. But mainline often refers to some of the European imports such as Anglican and Lutheran churches. The first a result of essentially a political power grab that then evolved in its own theological space. The second was essentially an original attempt to reform the Catholic church, abet in some very major ways, that essentially again got wrapped up in politics too. Neither has rejected substantial parts of liturgy and even their teachings on Communion remain substantially similar. I thoroughly believe most Catholics would have no idea which denomination was which if attending a one of these church’s services.
Indeed the majority of changes, in say the Lutheran Church, are not “the Priesthood of the Believer” type form of “sola scriptura” but an attempt to remove Catholic traditions not directly supported in the Bible. I often see this as difference missed in some of the “sola scriptura” threads that come up here. One is in a certain way “anything goes within bounds” the other is highly defined theologically (though with a number of distinct versions) as with the Catholic Church.