I wouldn’t say never any justification for kicking in the door. I own multiple properties, I can imagine asking the cops to kick in the door if certain illegal activities were going on in one of my properties.
If those suspected illegal activities (remember innocent until proven guilty and probable cause) are not putting an innocent persons life in immediate danger then no there is no justification for kicking in the door. The police should be required to get a search warrant, announce their presence and wait for a response. If no innocent life is in peril there is zero justification for forced entry and certainly no justification for deadly force which at this point is one in the same.