"Am I missing something?" Not really. People like to categorize things in attempt to draw any kind of conclusions from it. Sometimes it can be helpful and some

"Am I missing something?" Not really. People like to categorize things in attempt to draw any kind of conclusions from it. Sometimes it can be helpful and sometimes not. The trends they are describing were most likely occurring consistently over time and not at any particular point, but if you take two points in time 30 years apart and compare them it might look like a drastic change.