Flip Flop
No they did not flip. It was an excursion not a reversal. The mantel did not detach and there was not a global Tsunami. It was an excursion and it was rapid causing huge changes in climate and volcanic and seismic activity.
6000 Years Ago | Magnetic Flip, Volcanos, Climate (4 min)
‘Potentially Hazardous’ City-Killer Asteroid Hiding Close to Earth! – Geomagnetic Storm Watch
Don’t worry about the excursion because the asteroid (or solar flare) will get you before then (lolz).