As the article mentions, I can tell you that there is a stark divide between people who flew airplanes / helicopters in the civilian world before 1990 and after 1990, when noise cancelling headphones became prevalent.

Old guard can't hear anything, and has weird preferences for what small airplanes are 'good' or 'bad', whereas the younger crowd doesn't.

I personally owned a small airplane a few years ago that never made it as a viable product and wound up bankrupt, but for the remaining fleet still flying around and needing parts support. The company that made them went bankrupt in the late 1990s / early 2000s and one of the biggest knocks against it was how loud it was inside the cabin.

But with noise cancelling headphones all of that disappears and it's really a wonderful, comfortable little bird, and has had a resurgence in popularity as noise cancelling headphones became ubiquitous.

Even when I owned one I had no idea how loud it was inside the cabin until I inadvertently sat on the noise cancelling on/off switch on the cord of my headset one day and suddenly couldn't understand what the air traffic controller was saying, lol.