The earliest believers centered on Jerusalem as the "seat" for guidance - as we saw when Paul and Barnabas returned to Jerusalem to clear up a doctrinal dispute among the Gentiles.
Later notables in the church centered on Rome as the "seat" for guidance. Many since the sixteenth century considered no geographic location as a "seat" at all. And in these last days, some are reconsidering Jerusalem as the center.
Scripturally speaking it is impossible to argue against Jerusalem. Historically speaking it is impossible to argue against Rome.
And both, btw, are noted for seven hills which is not only curious but appears in Revelation as a significant location for end time prophesy. (I'm thinking it is Jerusalem, btw.)
Spiritually speaking it makes no difference at all.
Jesus saith unto her, Woman, believe me, the hour cometh, when ye shall neither in this mountain, nor yet at Jerusalem, worship the Father. Ye worship ye know not what: we know what we worship: for salvation is of the Jews.
But the hour cometh, and now is, when the true worshippers shall worship the Father in spirit and in truth: for the Father seeketh such to worship him.
God [is] a Spirit: and they that worship him must worship [him] in spirit and in truth. - John 4:19-24
INDEED!
And before I reached the latter part of your post, I was thinking in my mind/heart . . .
NO WHERE
will do, essentially.
GOD OBLITERATED PLACE
!!!AS THE FOCUS OF HIS ANOINTING, EVIDENT "PORTAL" ON EARTH!!!
[Note the rending of the curtain in the Temple--supposedly was 3 feet thick at the time.]
BECAUSE HIS SPIRIT HAD COME TO DWELL WITHIN EACH OF US.
And, while He will evidently set His Throne in Jerusalem and certainly the New Jerusalem . . .
CHRIST DIED TO RESTORE FELLOWSHIP WITH MAN FACE TO FACE--AT AN AWFUL COST.
It would be an insult to His Precious Blood to return to asking Moses to speak to God because we were afraid to COMMUNE HEART TO HEART; SPIRIT TO SPIRIT; MIND TO MIND WITH GOD DIRECTLY--WHO DWELLS WITHIN US.
I just don't see God having much patience with such--all the more so the closer we get to His Appearing.