Getting a touch is irrelevant, that's a commentators dumbing down of the rules along the same lines of "He's the last man so he's got to go".
Getting a touch only matters if the ball is knocked far enough away from the attacker that they no longer have control of the ball before the action of knocking the ball loose brimgs the attacker down.
Unfortunately, because the commentators go on about a player 'getting a touch' everyone expects referees to look for the slightest brush of a foot against a ball but this isn’t mentioned anywhere in IFAB's The Laws of the Game.
We're at the point now that referees seem to referee the game according to what the pundits think the rules are as opposed to the actual rules, it does my head in.
It was a clear indirect free kick and shouldn't have needed forensic VAR intervention, as the defender "impedes an opponent with contact" and was then correctly shown a red card for an obvious denial of a goal scoring opportunity, it should have been a simple decision.
The whole getting a touch thing is up there with commentators insisting "there's contact so he's entitled to go down" as one of the most irritating ways they've changed the way the game is played and referee'd.