So far only that spot will show that distortion. Suspect that's where the logic board is. Tried on the left side, no such screen issue.
If you check ifixit tear down, you are right, the logic board is at that right side. But I don't remember what is exactly positioned at that middle part.

middle right. dead center and large area at the left is battery.
Actually from that ifixit pics, looks like the spot is where the A8X cpu is.
probably got no battery to act as support and with the display being even thinner now, bound to have this issue just like we go touch the lcd display with our fingers.
I have personally tested the Air 2 sound/vibration. Though I felt the vibration, IMHO, it's not a defect and since I use headset mostly, its a non issue.
As for the spot appearing on the screen while holding at the lower right side of the iPad, it does happen. And IMHO it's not a defect. It's due to the design. Since I use case on the iPad, this is also a non issue.
I suppose it's really to each his own. For those who are bothered, then, perhaps Air 2 it's not for you.
is anyone returned your ipad?
Bro, how cum ur eyes so steady ah?
is anyone returned your ipad?
I am going for a replacement cos of the distortion issues. Want to see if the replacement set also suffer from this problem.
I support you fully on getting replacement and get the best display that you can possibly have. But...I tried to check the distortion problem in 3 apple stores already...seems like all have leh. One is more prominent than the others but all can see when you shake the ipad while holding with right hand.