I couldn't disagree more. Having had a proper manual for my human body would have been amazing.
I had a less intense but somewhat similar issue to OP's child. I was licking my lips and therefor got bullied for using "lipstick". Both stopped only after on one of those occasions a kid in their mentioned licking can cause it, while i pretended to ignore them. I'm quite thankful to him and wish i could help others just like that.
Another is being lactose-intolerant. No idea when I became that, must have happened quite late. But it took me embarrassingly long (mid twenties) to figure out, change my diet and thus get rid of those messy bowel movements.
I see little value in not having those kind of knowledge available and instead having to find out yourself. And parenting would hardly be possible without understanding your child's behavior. If you have a problem with calling it "strange" or "debug", I'm fine with calling it something else. But i doub't many here care about (those) labels.
I bet what the parent has in mind is, for example, behaviors such as stimming.
I didn't know that word (but knew the sorts of [repititive] behaviours -- like rocking, hand waving -- as an indicator for ASD.
I couldn't disagree more. This seems like a step in the wrong direction. The last thing we need to do is label even more human behaviors than we already do into the bucket of "strange." Actually, even saying that parents need to "debug" these problems may be going too far. Humans are much more complicated than a machine that must work "just so."