A lot of people are very uncomfortable with the notion that not every product is targeted at them. It's an ego thing. If I was Freud I'm sure I could explain it better.
I remember discussions after the iPad came about how it was useless on construction sites, wouldn't last a month etc. If this is durable enough it could sell nicely. Also, having synchronized 'digital' data might help avoiding some issues like outdated underground blueprints (college machine room suffered network and power shutdowns because of wrong digging location.. how crass)
ps: https://news.ycombinator.com/item?id=6705169 says the specs aren't as impressive as panasonic toughbooks, someone needs to test this in real life. Slow mo guys maybe ? www.youtube.com/watch?v=8OH1CKIQdpw :p
And video editors.... except that video editors spend a lot of money to buy controllers for video editing, because video editing is about frames. It's about maintaining some illusion of continuity by messing with video by the frame. They need to controllers because they sit in a dim or dark room all day. And they won't want to touch the screen and get it dirty.