I dont know what to think about that article. On one hand, the OP could work 2 hours a day and earn a 6-figure salary, giving him freedom.
And this freedom wasn't enough to "take care of my children, enjoy my marriage", so it would be better to trade that freedom for a 8h-a-day job so you ... can... take care of your children, and .. "Hint: It's not about $"?
I really don't get the point AT ALL.