I felt it was more of a gimmick and a way to promote Binance in the middle east as he was wearing the Binance Tshirt and also at 3:20 Binance exchange was introduced. By using these statement " Even his own mother said, he was a stupid kid and he was wasting money", they showed nothing is impossible with Binance.
Another intelligent and unique marketing approach by CZ. This is what is called shadow marketing .
Link to the video
https://youtu.be/W0vEdn2jwyI
Although the story shown by NAS is quite good but absolutely they do powerful marketing in that video and for sure for how big the audience what NAS got for sure Binance got huge impression to its viewers. I don't know if CZ paid NAS for that video but one thing we can sure here they do that for marketing Binance to the world.
But I don't see any problem with this since if this one could help bitcoin or crypto then they are doing great with this.