Is there some reason the "number of transactions" part keeps getting ignored as well? You can make an argument that the "size of the network" part is misguided, but there is no question that the "number of transactions" is unequivocally false. If you are going to make a video on "how bitcoin works", it behooves you to know what you are actually talking about. But who am I to try to bring logic into a investockurrencommodity based on belief.
The "number of transactions" is true, because most transactions pay a fee which is recycled into the network. Although it is disputable that the bitcoin is made, as you could say it is transfered.