It does.
View attachment 70381
It only makes the point about advantage in terms of
attacking the ball and scoring as the example. It literally says "e.g." - it's just one example.
A defensive advantage is deflecting the ball away from the original angle.
It says "It is natural for a player to put their arm between their body and the ground for support when falling - having the hand/arm above shoulder height is rarely a 'natural position."
To be blunt, it's saying that "yeah, if you're ragdolled into the air, we accept there's a situation where your hands can go anywhere as you fall" - but that's all it is saying. It is not excusing just putting your arms in the air - in fact, the very reason the rule exists is for that tonight; it's a textbook definition of the change.