MEC Scout/LT Helo Lasering

[OverwatchX]

I appreciate the ability to laze targets from the co-pilots seat in the Mec Lt Helo (the one with cannons / 2 seater) but I was wondering if there was a reason that there is a very limited arc of view for the TV/B&W camera mode? You get about 25% of the full 360 picture as opposed to either completely forward facing or 360. Anyone know?

Also, this helo has a third seat behind the two front seats yet it is now available to seat anyone.

Thanks