Of course there is an unmentioned competing theory on explaining what caused the entire Younger Dryas Boundary (YDB) strewnfield. The idea is evident in this quotation and you can see a detailed explanation at the link below.
Similar to this area:
““Lightning in this region had to be imposing. A plasma intensifies in a shear zone, meaning it generates ion content due to the shearing and extreme temperature and pressure differentials. Shearing supersonic winds bounce shock waves between them, generating the highest current density in jet-streams that extended for thousands of miles. Lightning discharged from these plasma streams focused on the piling mountains below with the capacity of a thousand-mile-long thunderstorm being continually fed new energy.”
https://thedailyplasma.blog/category/electric-universe/