That's a fairly low quality med-spam internet article, like
> so take the quiz below. If your total score is 15 or more, there’s a 90+% chance you have LPR reflux.
with no quiz. It doesn't mention anything about posture, stress, or the lower esophageal. It seems like a new catch all stomach disease, much like the old catch all stomach disease.
And despite this, you assert that it must be LPR?