GLOBEBUSTER'S Wonky Flat-Earth Solar Eclipse Conundrum

This is a response to part of the content in Bob's GLOBEBUSTERS video at the link below. The GLOBEBUSTERS video was based on a video by Flat Earth Consequences, so I'll link that video as well.
The GLOBEBUSTERS video was a +3 hour livestream. This video is response to the solar eclipse material only.
As I state in the video, surely even lunatics can agree on the basic properties of shadows? I've encountered multiple flat-Earth videos where the nature of even shadows seems to be a mystery. It ain't rocket science!
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Follow-up (addendum) Video: • GLOBEBUSTER'S Wonky Fl...
GLOBEBUSTERS Video: • Video
Flat Earth Consequences Video: • Video