Even since a child in my Geography class, I thought something was up so I raised it with my teacher “Mr Hankins”. I must have been about 13 years old.
Science has a habit of holding onto ideas that just don’t make sense. I think this is a perfect candidate for letting go. It also neatly explains how dinosaurs got so big, combining a smaller earth with less gravity would easily let them swell to gargantuan sizes. (although this is not mentioned in the video.)