Returning to the OP and the issue of restoring God's name to the NT. An article entitled "The Tetragram and the New Testament" by George Howard in Journal of Biblical Literature
Vol. 96, No. 1 (Mar., 1977), pp. 63-83 makes for very interesting reading on the subject addressed by the OP.
In his concluding observations on page 83 he asked fascinating questions:
"(3) How great was the impact of the removal of the Tetragram from the NT? Were only those passages affected in which God and Christ were confused by the ambiguity of the immediate context; or were other passages, which reflected a low christology even after the change, later altered to reflect a high christology? Did such restructuring of the text give rise to the later christological controversies within the church, and were the NT passages involved in these controversies identical with those which in the NT era apparently created no problems at all?"
“Can we conceive of a greater incongruity, than for a Christian to go from his closet, where he has been praying for his enemies, and command his troops to plunge the weapons of death with fiend like fury, into the hearts of those very enemies? In the one case, he happily resembles his dying Master; but whom does he resemble in the other? Jesus prayed for his murderers. Christians murder those for whom they pray.” - Henry Grew, 1828