Which leaves me to believe there are technical or engineering challenges involved with making to FOV larger. Just about everyone that has demoed the unit said it was amazing, but the FOV was limited. If MS was looking for feeback they have received that the FOV is too small loud and clear. It just may not be possible at the price point they need to hit to make it larger.
You know tv sizes in the 1940s and 50s were around 12-18 inches 400i or less resolution. Guess they should have said "nope this technology isn't ready lets what another 10,20 year for color and bigger size screen". I just not hung up the fov as much some. No if the core Hologram tech was reported to have problem are was different than what MS showed on stage then I would be concerned, but every report said those images are real.
I doubt anyone is thinking the FOV is what it is out of choice...
TV's weren't just a fancy display tech, or a new way of consuming the same information - it was a literal revolutionary device which no one had ever seen anything like it in the home before and changed the way almost every family entertained themselves by delivering theatrics into the home.
People aren't going to be anywhere near as forgiving for devices like HoloLens or VR because, simply put, there are so many other options available. This is why the gen1 product has to be great. Oculus knows this, Valve knows this, but apparently Microsoft didn't get the memo.