It was interesting, but certainly the second half dropped off a bit. I'm still not sure how they concluded there was another continent, but they said they want to find it so if they could it would be a manor discovery. However, I don't believe they will find anything.
As for the earth being convex, I'm still not sure how they came to that reasoning, nor where they got that design of the earth from. The continent's were sort of jumbled up and it looked untidy.
Despite being a flat earther, I do believe in gravity. Believe it or not, it does not disprove the FET. It seems to be a more modern thing that gravity doesn't exist, it really does.