Even when 95% of the sunlight is blocked by the moon, you would hardly notice it if you weren't looking for the effect. That dark spot is way too big to be real.
ML/NJ
https://www.timeanddate.com/eclipse/globe/2020-december-14
You made me look. Above is a map of Africa showing the path of the eclipse. It appears that that dark blob on the original video is the 90% path. Yeah - I have no idea what the shadow would look like from space. (Hmm - wouldn’t the space station have images of it?)
https://earthsky.org/space/iss-astronauts-aug-21-2017-total-solar-eclipse
Here are a couple of photos of an eclipse as taken from the ISS. Bad angle and hard to tell the scale (I bet somebody could figure out the scale based on the curvature!) - but it looks pretty cool - and similar to the computer graphic in the OP.
That was taken from a GEO satellite so it is always over the same place on earth. The completely dark earth is night time. Then after sunrise the eclipse shadow moves over South America and east across Africa. They did not explain it very clearly.
This is what the aliens will see when they wipe out all human life on the planet.