That Beeb article you linked also showed
this graphic of Mata's touches on the ball. That is clear as day the positioning of a right sided (left footed) attacking player. The overwhelming majority of his touches are wide right & close to the by-line, with a smaller number in the inside right channel, representing when he cuts onto his left foot. He manages two touches close to the box (impressively scoring two goals) but you can see that those are the exception.
To go back the original point, Pogue was saying that Rooney could play in any of the attacking three positions in a 433. If we played like, say, Barcelona, with a proper attacking trident of strikers, who just use wide areas as a place to start their runs to goal, then maybe, since you would expect him to spend as much time close to the box as on the wing.
But by no stretch of the imagination did we play
that kind of 4-3-3. Whether you call it 4-1-4-1, 4-2-3-1 or 4-3-3 is not the point here, the point is that the wide players started really wide, and spent most of their time there. That really wouldn't suit Rooney, or at least hasn't done before.