Crew are supposed to make use of Medlink and the Tempus system before on-board assistance by medical professionals. IF this story is accurate, maybe that is the gist of what was really happening.
Often there are more "doctors" on board an aircraft than medical professionals. That's because when they hear that a "doctor" is required, every ****wit with a PhD in geology, mathematics, thermodynamics, jingology or whatever presses his callbell and informs the crew, "Yes, I'm a doctor." The crew then have to make sure the passenger is in fact a doctor, not a tosser.