He's actually right. The FDA allows companies to count certain amino acids as protein content. Plant protein is not the same as animal protein. That's why unscrupulous supplement companies will add amino acids to their supplements to inflate the grams per serving they can list on the label. Just search for amino spiking or protein spiking if you want to know more. And if you're not up for it here's a link https://us.myprotein.com/thezone/training/amino-spiking/