What's the market for this?
People buy ChromeOS devices because they are cheap. That's why they've been popular with schools, they don't buy the devices and then spend 1-2x that much on support/licensing during their lifetime. No school is going to buy a $1600 ChromeOS slate - they could buy 5 iPads for that, or three iPad Pros, and have tons of software designed for the iPad available to them. Or they could buy god knows how many ordinary Android tablets, which may have to mostly make due with phone apps but at least they get the bigger screen.
So who is the customer here? Enterprises? They are still on Windows, and sure aren't going to spend as much on a single ChromeOS device as they spend on fancy laptops or Surface Pros for their C-suite people. Consumers have little use for ChromeOS, given that ChromeOS devices have almost no pricing advantage over cheap Windows tablets - they sure aren't going to be dumb enough to spend $1600 on this thing. They wouldn't buy it even at half the price.
Do Google managers get bonuses based on creating products, and then further bonuses based on canceling them? The number of products they introduce and then kill suggests that may be the case!