I’m not sure why you felt it was patronising to say it’s nothing to get hysterical about when, as you say, no one here had been ( and when it isn’t anything to get hysterical about, as it turns out).
I, however, felt faintly hysterical when first told as I was feeding it to my baby at the time ( and had done so off and on for some months) when someone very bluntly said it was a bad idea as it was “ full of carcinogenic arsenic.” I didn’t want to give someone else that shock. Arsenic in the right dose is a poison in and of itself, quite apart from any carcinogenic properties. So without the full facts I was highly alarmed. My first foray into the subject immediately returned the information that it was around 20 times the level in other foods. It took time for me to dig further.
That said, while a manageable risk, it is a risk and I couldn’t simply qualify the assertion by saying it isn’t a concern.
Interestingly your article accorded very closely with what I had posted ( only they suggested a five to one cooking water ratio in lieu of six to one) save that they in fact go further and recommend a full overnight soak, rather than a pre rinse.
I’m not sure I would manage that, given it’s not a staple for us, but if we ate it more frequently it might be something worth thinking about .
The precautions needed will depend really on how often it is eaten.