If you have to speak "carefully enough" then you're taking a big risk though you may luck out and get what you want, they're not safe.

EY's article contains arguments, you just seem to have picked up on something that wasn't what he was arguing about.

It's like someone started a speech with "Good evening ladies and gentlemen." and your criticism was that he failed to prove that it was evening, failed to prove that there was a mix of genders in the audience and that the entirety of the rest of the speech failed to contain any arguments about whether the men in the audience were in fact gentlemen.

It contained a very clear and well made argument for why simply trying to word your wish carefully was a fools errand.

You may notice how it starts with an overly complex wish from the "open source wish project". It then gives examples of how simply adding clauses to the wish to get your mother out doesn't help much because you value so many things as a human that you'd have to add so many thousands of disclaimers, clauses and rules that it would be insane while missing even one could mean disaster(from your point of view) which is extremely unsafe.