Hmm - not the wording for me, which is poor, rather "under the guidance and interpretation of..." - I think without guidance and examples the law as written alone is not really possible to consistently implement
I'm sorry but if you can't tell the difference between feinting
before the run up is completed and feinting
after the run up is completed, then I despair, I really do.
It seems apparent that you were unaware of the actual reason why this law was brought in - since you said you couldn't see how it could be triggered, while there are multiple, real-world examples that clearly show the kinds of kicks that would contravene the law - and indeed, are the very reason it was adopted in the first place.
Could I suggest that you go back and look at some of the examples of paradinha penalties in the video clips provided?
With a paradinha penalty the player completes their run up all the way up to the ball, draws their foot back and starts to bring it back down before stopping. There's virtually no goalkeeper in the world who wouldn't dive at this point
Then, having seen which way the keeper has gone, and with them lying helpless on the ground at one side of the goal, the player simply rolls the ball into the other corner.
The examples show very clearly, just how obvious the difference is.
When this was banned in 2010, one IFAB member summed up the organisation's view of it as follows:
“We saw some video examples, which make it clear it’s very unsporting when the player gets to the end of a run up, feints to kick completely over the ball, the goalkeeper goes in one direction, the player pulls his foot back, and kicks the ball in the other direction,” IFAB member Patrick Nelson told reporters.
“It’s clearly unsporting.”
Again, the difference between the actual practice that the law prevents, and feinting during during the run up is as clear as could be, and I'm amazed that you can't see it.