It's only a "retreat" from what the media reported, not from what CENTCOM announced over a week ago two days after the announcement in "general terms" and well before any "heavy criticism from many Iraqis", not to mention more important criticism by American citizens/voters, could possibly have built up and been communicated back to CENTCOM.
http://www.centcom.mil/CENTCOMNews/news_release.asp?NewsRelease=20030587.txt
The New York Slimes again.