I have not time to watch this, (exam tomorrow) however, Martenson's equation that growth is not equal to prosperity is also flawed, it implies that growth cannot be linked with prosperity, however improved efficiency yields both growth and prosperity.
For example, if it used to take 100 litres of water, 100 kilowatts of energy and 100 square metres to grow 100 bananas - and improvements mean the same energy, land and water can be used to grow 500 bananas, or half the land, to grow twice as many bananas this provides both growth and prosperity.
I think that one of Mathesons problems is he equates falsified (paper money) GDP growth, with real growth in productivity. He talks about false growth in GDP, yet does not factor this into his growth versus productivity calculations.