Yeah rewind and slowmotion would be lovely, but then I will not repeat
this thread, we have to do with photomode. You start it when you have paused the replay (button at bottom right), there you can look at the car from all angles, take a photo and upload for review.
I also have a few laps that I have studied to death, and have concluded that the front left wheel can not possibly have lost contact with the rumble strip. But without rewind and frame stepping there is no way to prove clean, only unclean. And that amount of inspection means I am in doubt, and doubt = no submit.
Remember we review each others' replays, and if I needed X time to be reasonably sure, I am putting the same burden on the reviewer.