A commenter on the previous post asked why I wrote it, and I responded in the comments. It occurs to me that the further thinking to which the question led might be of more interest, so here is some of it.
I readily admit such things happen in terms of music and liturgical style — but at least the text has a common center. But with the text altered, everything is literally up for grabs. Such a parish becomes sui generis in almost every aspect. And I think this is destructive to our common mission as much as to our common prayer. Why?
It seems to me that the further apart parishes are, the more they should aim at being as plain vanilla as possible — good vanilla, of course, organic beans with heavy cream — not only for the sake of the visitor or newcomer, but in order to share more closely in the common life of the wider church. In more urban settings, parishes can, I think, risk more variety in style (though not, as I'm attempting to note here, substance). But if the only church in town is offering a liturgy that is not BCP — in addition to whatever ceremonial, musical, homiletical, or sartorial variants are on tap — I can only think it will become more and more peculiar and isolated as time goes on, and is at risk of becoming a sect of its own.
— Tobias Stanislas Haller BSG