That's why I wrote the upper quote in a previous post, you should pay more attention in reading what is written, instead of keep returning to the same point
My point is another and can be simplified in this:
200 or 180 FOV in the end, apart from the black edges at the end of the P.V. has little importance, except for achieving full immersion, that yes....would be great.....BUT:
In my opinion, and knowing a little optical physics, 200 degree FOV is VERY difficult to obrtain with current optical lens technology we have, without adding some distortion, chromatic offset and imprecise focus at the edges.
The more you have to scretch the render window on the two panels, and add software optical correction to match the lens, the more likely you will get an unnatural or slightly distorted image of the world view at the farther edges.
I doubt all of these could be fully avoided in the final headset version, even Sweviver said in his test at VRDays (if I remember correctly) that the view was slightly unfocused at the edges, this is normal and to be expected, Pimax has probably obtained an improvement with the new lenses but they will hardly remove it completely.
But in the end it is a very marginal problem to mind for.....and, if I have to choose from distortions/blurry-edges versus a little less wide FOV, then I would choose the latter.