No, that is not one. That is the whole point. Look at the label, you would need to eat 29 scoops of that per day to get your daily potassium. It doesn't even mention all the vitamins and minerals we know we need. That is not a balanced, complete source of nutrition. Every time soylent is mentioned people make this claim, that all sorts of not even close to complete products are already filling the role soylent is intended for. They don't.
Hmm, I looked pretty hard several times on Amazon for a soylent type product and that was the best one I found. It could be that type of thing doesn't sell well, but we will find out once soylent hits mass production. I like the idea because I am addicted to food if somehow I can just cut food out of the equation, avoid it entirely maybe I could tame my addiction.