I don't see the problem. It was an app specifically developed to help people evade American law and attack people who work for the government, how is it a shock that they took it down?
Maybe the app enabled violence against law enforcement - but Waymo does that too by telling you where traffic cops are. Or Google Maps and Yellow Pages for documenting the location of police stations. Undercover officers, ICE or otherwise, aren't given any special exemptions to the law here.