The message of the article is good but it's not seeing the forest from the trees.
Having just read the Forbes artcile on the company and Jan in particular, some interesting things stood out:
1) Jan had money to start and was able to take time to build a user base and find the real value in the App and didn't need to go around "raising money". The SMS component of the app wasn't the initial focus. The company didn't need VC funding at any point. He was able to focus on product development and revenues started to come in to cover costs.
2) Jan is a technical guy. He did the initial backend but hired out the iPhone development. Either way he was involved. He developed the initial app for the first 9 months or so before bringing on Ackon as a cofounder.
3) There is real value in the app. No one needs to question this. There's no big pitch deck's, presentations, etc.The app was allowed to grow organically due to its network affect. The business can scale into the millions and billions of users.
The $16 billion exit is largely due to number 3. It's rare for a lot of businesses to have that kind of scale.
Reading the Forbes article, my takeaway is that there is no way anyone can "build a path to a xx billion exit". What one can do is find a business model that can actually scale and generate real revenue. Maybe not to billion users or hundreds of millions in revenue but enough to take it outside of the "lifestyle" business mode. Also, having money of your own and technical skills to execute doesn't hurt one bit.
I think one lesson that I would take away for the younger crowd is - slow down a bit. Go work for a big corp or even a startup that pays well. Save every penny. Instead of spending that $100 on the get together every other night save it. Build your skills. At some point, go for it. You'll have money to live off, money to test your business model and a fallback if it doesn't work (get another job).
EDIT: Another big reason for the big exit is incredible leverage by Jan. He's got the most equity. He doesn't need Facebook. He is already a millionaire and the App can only get better. This is deal making at its finest. I can only imagine how much back and forth happened, each time with a bigger number from Facebook.