I am so sick of this perpetual fallacy about labor shortages. If you can't find enough workers it means you need to raise the price you're offering. (But yasp the article cited one particular firm has already increased prices 15% this year.) Doesn't matter. There is a certain price at which the market will clear. If the market isn't clearing it's because the price being offered is too low. Keep trying.
Our economy has split into areas where in some areas "talent" can get almost infinite amounts of money and in other areas it's simply not conceivable to pay people more. I wonder how free market people explain this. Based on the market theories I have heard it doesn't make sense.
As for this particular case, truck driving is a crappy job, with its long term prospects darkened by self driving technology, and equal paying professional jobs in decent supply. If you're motivated enough to be a professional, you can usually find a better career. And there's a fairly hard cap on how much long haul trucker drivers can be paid before rail becomes more economic.