With all due respect, this is a good reason why folks should not use the internet as their sole source of medical information.
Dr. Mark Hyman is an author of several books as well as a newsletter on "fringe" alternative therapies (like..."Lose Weight With Chocolate!"), and, therefore, has agendas. Also, the study linked in the OP is a small study, with only 10 patients and 10 controls.
Clearly, medical science has more to learn about reflux, and GERD. This is not debated. But one can not make a blanket statement such as you did, on a forum such as this, and not expect to be challenged. I wish I could take PPIs, but I can not because of headaches, and suffer. They help millions of people live normal lives. Are they mis-prescribed? To be sure, but so are many other medications.
To say that all one has to do to avoid reflux is to "...eat healthy and exercise. It's that simple," is an insult to all here who have faithfully lived healthy lives for years, and still have symptoms. I'm glad that you have found your solution, for now. But with so few details on your history, it's difficult to make any assumptions.