I see the logic behind the choice of left eye for the flip down display, and it will probably also be able to show maps, video feeds from other assets like other soldiers, drones, satellites etc. However, the problem with this current set up is that is will be awkward to use NVGs.
Having NVGs on the right eye would force the soldiers to shoot from the hip, or have to flip the monocle up to use his scope for aimed shots. Neither scenario ideal.
My preferrrdd choice would be to have added the mount to the left side of the helmet.
The display would then be able to either flip down from the side, allowing an NVG monocle to also be equipped. Or better yet, for the display to flip up to the eye, so it sits either near the chin like a tac mike when not used, or ideally, sit in front of the cheek. A slight tilt of the screen should then allow the troopers to see it in their peripheral vision or with a slight glance down even in the ‘rest’ position.
That would allow them to make use of tactical maps and external video feeds just as effectively with compromising their situational awareness.
The display could be flipped up to the eye for corner aiming or if detailed examination of maps or video is desired.