You are wrong, both cameras are in the same position and angle. You can freeze the frame and compare it yourself in more parts of this video. The best part where you can see the real life difference in cameras behavior and jello effect is at time 0:26-0:29. If you don't see any difference, maybe you are in the wrong profession...
Tested it. Nothing at all! same old bad codecs in MP4. No new GPU card support, only Intel Quick Sync (Which is not supported on my Xeon cpu). Useless for 4K encoding :-(
I really cannot understand that.
You are talking about E correction and if it was like that, it would have been written as an "Electronic reduction". This is not the case here, as you can find in the Panasonic GX85 IBIS. So you can relax, it is an IBIS in the new G8.