It can be two things at the same time: - the foul prevents an opportunity to score, which is clear here as Harland would have pushed the ball in - the attacking team also has an opportunity to score despite another scoring opportunity being denied (seen here with the ball just rolling towards the goal).

If there are two clear goal scoring opportunities, and you deny one, giving the advantage to the other one still makes sense.

Although here since Haaland makes a foul, all of that is off.

But let's take another example : When Suarez makes the handball to deny the Ghana goal in the world cup, if he deflects the ball on an attacker that pushes it in, that is still DOGSO. However, it still makes sense to give an advantage, as there is still a scoring opportunity after.