Not gonna down mod you coz you've given thoughts to it.
Yet, your argument is inline with what the article says. It took Google 10 years for them to become a HUGE success. During this 10 years they probably have worked really hard everyday, and they're all brilliant people. For less talented people it probably takes even longer.
I guess your point is if you're just gonna do a declicious-scale success it doesn't take that long. YouTube even just took a year. But look at how much experience they have under their belt before that. It really depends on where you start counting that 10 years.
The article doesn't specify either, though. It's kind of vague.