In the case of the Destroying Worship a.k.a. "Renewing Worship" project of the Evangelical Lutheran Church in America it seems to be purely (and crassly) market driven by a publishing house hell bent on foisting a new, improved, brighter, whiter (no, with political correctness, that should be rainbow hued) "constellation of resources".
The secondary agenda seems to be to make everything in the liturgy Propers...everything revolving around the Revised Common Lectionary instead of focused on the unchanging Eucharist.
It is also driven by the radical feminists (the ones I call feminazis here on FR) who have been eating away at the ELCA since before its founding in 1987, and who infest the committee that put together Destroying Worship! AF is completely in thrall to the feminazis, and anything published there must go through the language police to put everthing into "inclusive language". That is why the best American Lutheran theologians publish their books with Eerdmans, etc., and AF is left publishing the works of heretics and third-rate revisionist hacks!!!
No one who has experienced the glory and beauty of the Divine Liturgy of St. John Chrysostom can stomach the "new" liturgies, whether Lutheran, Anglican, or Roman Catholic. There are classic Western liturgies that are approximately the age of the Orthodox liturgy. Western churches should base their liturgies on the classic Eastern and Western liturgies, translated into modern languages WITHOUT feminazi language-police "cultural translation". That will avoid the liturgical fictions that the long-suffering orthodox and moderate laity are forced to endure now, and the boredom and hokiness that is associated with them!!!!