It definitely isn’t as basic and simple as that though is it? Defenders aren’t just going to let left footers waltz in from the right and have as many pot shots as they want.
To create that space and open up the pitch you need to be able to shift and change direction quickly, drop a shoulder, have a burst of pace to get away, and occasionally go on the outside and stand one up with your weak foot to make it less predictable what you’re going to do. Have you ever seen McNeil show any of these attributes? You haven’t, because he can’t play on the right.
Dibling is a player that does display these attributes, and that’s why he is a left footer that plays on the right.