2020 this is my reasoning.
There is a heck of alot going on, more than just a truck and a wing. And its taking a pretty wide swath, more than a traditional setup for sure.
Then there is the issue of that "thing" hanging out there, in a driving lane..a misjudgement of its location would do a number on any unfortunate driver in its path. Throw blowing snow and a slushed up wing into the mix and its conceivable that someone could drive right into the back of it trying to pass the plow. I wont debate the sense of passing a plow in a snowstorm, but we all know that people do it .
I also have to wonder just how much savings in labour their will be, because a traditional wing plow is still going to have to come by and push the shoulder back after the tow plow has gone by.
Then there is the cost.. 100K. That's getting up into new truck territory.. although with this you save the cost of a driver.
Honestly it seems like a solution looking for a problem.