They don't undo the dominant narrative. But they're not exactly minor revisions, either:

The White House backed away Monday evening from key details in its narrative about the raid that killed Osama bin Laden, including claims by senior U.S. officials that the Al Qaeda leader had a weapon and may have fired it during a gun battle with U.S. forces.

Officials also retreated from claims that one of bin Laden’s wives was killed in the raid and that bin Laden was using her as a human shield before she was shot by U.S. forces.