He is no longer in unison with the congregation - he is facing the opposite direction from everyone else.
In addition to this discrepancy, 90% of priests feel the need to "perform" in front of a crowd - it's a natural human instinct.
"He is no longer in unison with the congregation - he is facing the opposite direction from everyone else."
Not as I see it.
As I see it, the consecrated Host is God, and the priest and everyone else are oriented towards God by facing God and holding up God. It's a circle, not a rectangle, but the orientation is all the same way: towards the center of the circle, where God is.
I can see either way as full of theological meaning and symbolism, and do not really think that one way is more theologically correct than the other.
I do agree that one way is more traditional than the other, and I would say that for those who find especially deep meaning in the form of the Mass practiced before the 1960s there should certainly be Masses done that way. I can't see any particularly good reason not to bring the important things home to people in the way they are best prepared to receive it.