Really neat video, and the second perspective is great for analysis.
I noticed you concluded that "too much elevator pull induced liftoff." Unless you were attempting a touch-and-go I would say that you deduced a symptom and not the cause. The cause would be that the landing was too fast. The aircraft was still at flying speed after the wheels touched, and when elevator was added (to flare?) it turned that speed back into altitude. If the speed was closer to stall when the wheels touched, liftoff wouldn't have been possible.
This might be old news to you, I see you have a large catalog of FPV vids, but might be useful information for someone else who runs across this thread.