The Trump administration did not apologize for its attack on the Iraqi troops. Instead it appealed to Iraqi sovereignty, which it had broken when it attacked the PMF, when it demanded better protection for its embassy. Even today, with no demonstrators anywhere nearby, the U.S. was flying helicopters patrols over Baghdad. The Iraqis see that as a further insult.
During the last few days the public mood in Iraq has changed from mild anti-Iranian to strong anti-U.S. sentiment. As there is no apology coming out of Washington, only more threats, the Iraqi parliament is likely to agree to ask the U.S. forces to leave.