A reactionary justification.  Ad Orientum took the people out of the Mass.  The prayers reflect it.  Of course, the new order is to be more like a seder, although a full lamb dinner is not included (that would be reactionary).  Re-latinizing has no hope either.  Adding prayers or responses to more link the Eucharist with Calvary would be good.  While I can see the logic of saying My God, My God, Why Have You Abandoned Me to an Ad Orientum elevated host, and I thirst to a similar chalice,   There is also a logic to doing so face to face, especially so we don't miss our cue and because WE are the body of Christ, not the statue above the Altar.