There's never an actual shortage of anything in this economy. If there's a supply problem then they're not getting paid enough. Unless of course this is some sort of propaganda piece.
Truck driving is one of those jobs that can't be scaled. Unless you set yourself up to manage other drivers (which of course not everyone can do), there really isn't anywhere for your career to go.
Even in my current line of work–cnc fabrication–the knuckleheads can find ways to make their job easier and efficient. What can a driver do?
I know of a guy who had previously run a successful VPS service. He dropped the VPS gig, sold the company, and is now driving trucks. Things aren't always as they seem.