I put that up and it's now caused me to go have a look at the laws. Following that, the Boks LH then came up, followed by the Wobs hooker. I think Hooper then disengages thinking there will be a reset, then re-engages when he sees the ref has his arm out.
Personally I think it should just be a reset under law 25 -
If a scrum collapses or if a player in the scrum is lifted or is forced upwards out of the scrum, the referee must blow the whistle immediately so that players stop pushing.
It doesn't appear that any of the Wobs have caused it under Law 39 -
- Dangerous play in a scrum includes:
- A front-row charging against the opposition.
- Pulling an opponent.
- Intentionally lifting an opponent off their feet or forcing them upwards out of the scrum.
- Intentionally collapsing a scrum.
- Intentionally falling or kneeling.
Besides any of that Faf should be penalised for being about a metre offside (in front of the ball)!!!