Rather than look at someone else's interpretation of the handball law - look at what it says:
It is an offence if a player:
- deliberately touches the ball with their hand/arm, including moving the hand/arm towards the ball
- gains possession/control of the ball after it has touched their hand/arm and then:
- scores in the opponents’ goal
- creates a goal-scoring opportunity
- scores in the opponents’ goal directly from their hand/arm, even if accidental, including by the goalkeeper
So VAR had to interpret the accidental handball by Laporte and determine if he gains possession/control and then creates a goal-scoring opportunity.
In my opinion it is meant to apply to a player who deliberately gets control of the ball accidentally and goes on to provide an assist not an inadvertent deflection..
This interpretation of the laws.