The relevant laws are as follows:
[LAWS=]18.8a A player, in their own half, kicks the ball indirectly into touch in the opposition’s 22. Either the team did not take the ball into their half, or a tackle, ruck or maul took place within the half, or an opponent touched the ball within the half. This variation does not apply at a kick-off or any type of restart kick.[/LAWS]
This only applies if the ball goes "indirectly" into touch.
Does not apply at a kick off or any type or restart kick. This is covered in the definitions.
[LAWS=]Kick-off:[/LAWS][LAWS=] The method of starting each half of a match and at the beginning of each period of extra-time with a drop-kick.
Restart kick: The method of restarting play with a drop-kick after a score or a touch-down.[/LAWS]
So you can have a 50:22 from a Free Kick, a Mark, or a 22 Drop out, but it cannot go straight into touch.
Looks like either the referee in the video got it wrong, or got it right for the wrong reason?