"and they stick with his decision when it is 95% clear that it should be reversed" ................ thats not an issue with the principal, its an issue with the video ref
To the viewer, "can we check the grounding" doesnt explain that what the ref might need to check is "was there pressure on the ball" or "did he lose contact".
I still have the idea of playing the video back on the TV screen, under the direction of the match referee, as only he knows what he's looking for/couldnt see, and let him still make the final call. (Backup rule, during the review period, any player who approaches the ref to "offer an opinion" is sin-binned)