But like I said, that'd be more a quality-of-life improvement, good for bling factor and quick CQB environment shooting stance switch, but is it truly necessary?
If it was meant for CQB, mounting it on the other side would make more sense as you might be able to rig it to allow you to use the dot while shooting both eyes open.
I almost wonder if this particular mounting position was intended for urban combat and shooting from unusual positions, like shooting under a car or similar cover. With a normal optic layout, the only way to shoot from such a position is to lie parallel to the cover, which will allow you to get a shot off, but will also expose nearly your whole body to enemy return fire. With this setup, you can lie perpendicular to the cover behind a wheel and only expose a bit of your head to shoot.
It’s an extremely fringe scenario, but might make sense if this unit is expecting a lot of urban combat or if there was specific positions in shooting competitions where such a mounting setup would give them an advantage.