I'll check out the video when I have some free time. I'm sure I'll be able to poke a few holes in it.
So... just like most flat earthers, you've prejudged the evidence before you've even seen it? You're "sure" you'll be able to refute some of it?
This closed mindset goes a long way to illustrating why most flat earthers are so resistant to the theories of contemporary science; they seldom approach any given problem without a preconceived notion of what the answer
should be—to
their way of thinking.
With regard to flat earthers, this represents exactly what's meant by "confirmation bias" and/or selective thinking.
In the cognitive sciences, confirmation bias is a tendency to search for or
interpret information in a way that confirms one's preconceptions, leading to analytical errors. It's a type of cognitive bias and represents an error of inductive inference toward confirmation of the proposition under study; in this case the parameters of the horizon.