Togashi is already the best character in this series by far, can we have him as the main character pls?
Now, what Togashi meant by wide makes sense. The difference between Aoi and Togashi is so clear. For Aoi, when he receives the ball, he simply stops the ball, spins around and passes it which takes a long time because his body shape is too narrow to do all of it in one go.
Compared this to Togashi who recieves the ball, he opens up his body shape so that after he controls the ball, he can immediately hit the ball because he has a wide enough space to do it in one go.
Remember that recieving the ball is only one part of the whole process, a player must immediately think on what to do next with the ball. And therefore must open up their body to passing options even before getting the ball. That's why notice Togashi shouted to Aoi on passing to him immediately after he hit it to the wall. He was testing on how quick he was to instinctively prepare to pass immediately after receiving the ball.