A lot of this is rather crazy, logically speaking. That is, the author constantly contradicts himself.
Like this: "Watching your savings dwindle isn't a risk, it’s a fact." That's nonsensical. Just because it's a fact, doesn't mean it's not a risk.
Or saying that there is no risk. There is risk in every single thing you do your entire life: you're 'gambling' with time constantly, and time is your life currency, it's always running out, how you spend it is a risk based equation.
If someone spends 30 years of their life on ten startups, and none of them work, how'd that risk equation work out? The business survival odds say that it's very easy to do ten startups and have all of them fail.
Lost time is an extraordinarily expensive proposition. You can never get it back, and you get one life to live. There's no greater risk in life than wasting time. The author says that it's not a waste because you're learning; that's not always true first of all (people often repeat mistakes), and second that only matters if some day that knowledge pays off (and that's a massive risk variable).
"you can build an incredible network"
"can" = risk variable. The potential for something to happen is not a guarantee, which means there's risk there.
The entire article is filled full of proofs for there being tons of risk in starting a business.