[krisgee]

Firstly as pointed out in other comments they were measuring income. People at higher incomes in the 80s were probably more likely to retire early or "on time". A more representative number would be wealth which I would imagine is probably horrifying in the vein that the parent and grandparent meant. People living hand to mouth in the 80s were probably doing the same in 2014. People who could save probably weren't.

Even just from the numbers presented imagine the lower percentile person who was making say 10k in constant dollars in the 80s. They're making 20k (100% increase) in same dollars in 2014.

Imagining the person in top was making 1,000,000 dollars in constant dollars they dropped 29% so they're now "only" making 750kish.

I know which group I'd rather be in.