You need 15 such farms to create the food for 1 equivalent of beef. So the argument would be for any those goo-creating farms, because we need far less of them,

You need 15 such farms to create the food for 1 equivalent of beef. So the argument would be for any those goo-creating farms, because we need far less of them, than we need when creating goo that feeds cows which we then eat.