Ms. Northrup has exhibited callous disregard for the safety of pilots and for the passengers they fly. From Steve Kirsch at stevekirsch.substack.com:
If she doesn’t the FAA should fire her. She has put the lives of pilots, FAA employees, and the public at risk by her abject failure to investigate safety concerns associated with the COVID vaccines.

Executive summary
Failing to investigate numerous safety issues associated with the vaccine that were brought to her attention is inexcusable. Her actions risk the lives and health of FAA employees, pilots, and the public. I know of people inside the FAA and pilots who have been killed or permanently disabled because they followed the FAA’s directive to be vaccinated. Susan has not called any of these people to investigate. Nobody from the FAA has. That is a dereliction of duty.
Also, since the FAA has never held an honest roundtable where the safety and efficacy issues associated with the COVID, I am now collaborating with US Freedom Flyers, Senator Ron Johnson, and The Highwire to do our own roundtable where we invite all interested FAA employees, doctors from either side of the debate, and pilots and FAA employees who want to tell their vaccine injury story (or the story of a friend if the person fears retribution). If you would like to speak at the meeting and tell your story, or the story of a fellow pilot or employee, please sign up here.