You lot? The Referees Association? The technical director of IFAB?
As far as I am aware, only official circulars by the IFAB or wording that they actually include in the laws is definitive. Anything else is just someone's opinion and does not carry the weight of law, even if that person is the IFAB's technical director.
In any event, even David Elleray did not say that every time the arms are away from the body, it necessarily means that the handling was definitely deliberate - he said that, "The
challenging decisions are if the defending player spreads their arms to make themselves bigger. If the ball hits the arm then the referee must decide whether this action was to deliberately block the ball ..." In other words, he is saying that whatever the position of the arms, there is still a decision to be made as to whether it was deliberate - or not. Which (as SF rightly points out) is totally in accord with the wording of the law when it tells us that "the position of the hand does not necessarily mean there is an infringement."
I think that all this talk about position of the arms, whether it is a natural or unnatural position, "making oneself bigger" etc, only serves to divert attention away from the main (and in one very real sense, the only) consideration - has the player made a conscious decision to deliberately handle the ball?
Sometimes I think it almost seems as if this question of natural/unnatural position is being used as the sole means of deciding, instead of it only being a contributory factor (and one that the laws tell us, is not necessarily definitive). If the only considerations are whether the arm position was unnatural (although that isn't necessarily a straightforward decision) or if the player has "made himself bigger" then we don't have to make the more challenging decision of whether it was truly the "deliberate act of a player making contact with the ball with the hand or arm."
For me, the question is not just whether the player has his arms in a particular position but whether he has intentionally moved them there as part of a deliberate decision to make contact with the ball. And does that not require some possibility of judging what the path of the ball was going (or likely) to be? If, as the laws again mention, the ball was unexpected and the player did not have the time, space or opportunity to move his hands either into or out of the way of the ball, can that truly be classed as deliberate?
In the incident we are discussing, I don't see how the player could possibly have known where the ball was going to go (the opponent could, for instance have hit it along the ground rather than in the air) and he certainly didn't have time, after it was struck, to move his arms out of the way even if had seen the ball coming which, given his body position, it is very possible that he didn't.
Anyway, as has already been mentioned, the IFAB is currently considering changes to the law on handling offences including (among other things) an attempt to clarify the whole question of arm position so it will be very interesting to see what they come up with.