It looks good, I admit that, and comparing it to Lumia 950 wasn't fair, but it does lack features for that price, no USB C, no T3, and you're stuck with the WLAN brand that caused trouble for SP2 users.Since when did the Laptop have a cheap design?
Yes, again, most people doesn't change components like that, and I agree, but models that doesn't allow that are usually cheaper.
Cost like an XPS 13. Built like a Chromebook.
As a comparison, this is what you do if your XPS WIFI is acting up:
http://www.windowscentral.com/dell-xps-wifi-fix-upgrade-wireless
$799 should be the starting point, it's still a premium model, even if very simplified. MS can't act like Apple in this regard as long as they have competition.