I agree. This 'natural position' nonsense is exactly that. When a player runs and turns and jumps etc., the body uses limbs to compensate and maintain balance. During this activity, arms especially, can be all over the place but they will always be absolutely 'naturally' positioned. We don't decide where our arms go as we run left then right and then jump for a ball. If you break your arm and it is hanging backwards at a right angle, that would be unnatural. Stupid rule and another one that was introduced to make things more simple and instead, has created a monster. Back in the day, 'ball to arm' was considered accidental and 'hand ball' was considered to be deliberate. The only grey area was judging if a players hand / arm went toward the ball as a conscious decision or whether it was a natural, subconscious movement. Unfortunately, that grey cannot be sanitised into black and white and we have to accept that, but in a bid to make everything black and white, we are off down another rabbit hole where neither black or white exists.
Still, decision makers get paid to review and introduce new interpretations to laws, additional refs get paid to monitor VAR and so there is a market for this shy-terry to be further exploited. We could go back to basics but the gravy train would have to come to a halt. Mike Dean by the way....where do I start? The Tony Blair of refereeing.