[myuzio]

The advice is very much in alignment with the "Zero to One" book. They are explaining how they made their startup "successful". But that doesn't mean if you follow their foot steps your startup will be successful as well.

This line of thinking is not far from the type that leads to cargo cult or any other superstitious belief.

So, not necessarily good or bad advice, do whatever works best for you, but it's important to measure often to know if things are actually working.