Some real science, from the original paper:
“In addition to explanations that incite new physics, it has recently been suggested that the AAE could be explained by downward-going CR-induced EAS that reflected off of subsurface features in the Antarctic ice (Shoemaker et al. 2019). Another possible explanation could be coherent transition radiation from the geomagnetically-induced air shower current, which could mimic an upgoing air shower (de Vries & Prohira 2019).” - https://arxiv.org/pdf/2001.01737.pdf
Yep.thats the ticket.
... CR-induced EAS...
******
Criminal Record induced End of Active Service?