If you watch both both videos (and you need to to get the full story) you will notice neither shows the father approaching the table, in both the father is already there and the shouting has already started.
By using the moment the women lifts her child's arm (when shouting at him for grabbing her child) you will see that the video released by Spur only shows events about 33 seconds prior to the original recording. 

If you watch the SPUR one from secs 4 to about 6 she is clearly not relaxed. All witness accounts, even those who filmed the video, who support her admit that she told him to f..k off when he asked her to discipline her child.

The issue for me is that even she admits her child slapped the other child in the face, what distresses me is that all the "pro-woman" people like Bronwyn have no problem with this, not one has denounced this violent act, their silence on this serious issue leaves one to conclude only one thing, they support physical abuse of children by children.