Although I know nothing of phage therapy, I can offer a personal view on the history of misuse of antibiotics. The article suggests a 20 year history for this, but that's an underestimate. My Dad was a physician, and I remember him talking about this a lot during the '60s, when I was a kid. Maybe doctors of that era, many having taken up medicine after returning from WWII, had a clear understanding of the battlefield that is infection. The old ones avoided overprescribing antibiotics, but the new ones were succumbing to the "client" culture, handing out pills because patients demanded them.