Why Saudi Arabia Is Building a Linear City

As far as supply line, it totally makes sense. 
It wasn't mentioned in video a out much as how the layout is suggested, other then it being liner.
Obviously any initial planning starts far very basic. Not everyone is going to live off the strip.
So where is the thought process in satellite communities? Or is there going to be shopping areas, versus industrial areas?
I really didnt feel like this was a bias video.
Especially when media is attacking a guy at the end, for ending impressions.
In all honesty how am I supposed to believe  anything from the media?