https://streamable.com/llvog
The more I watch it the worse this decision gets.
It was purely incidental contact after the challenge. There was contact on the ball (not much, but similarly the contact on the player was very little), and the attacker had lost the ball anyway.
No impact on play and at the very, very bottom of the 'careless' scale - at worst - should lead towards a 'no penalty' decision.
But even worse is the fact that the VAR got involved - even IF it was an error, it definitely wasn't 'clear and obvious'.