"But as the article points out, Generation X is saving more than the Baby Boomers at the same age. "
I'm not sure that's even true. Some Gen-Xers are saving and prepping for their retirement. A heckuva lot of them are doing no such thing.
Along the same line, a heckuva lot of boomers have their retirements well in hand. A bunch more don't. And so it is with every generation.
Well, the article didn't give a break down of Gen X saving rates, but it states that only a forth of Boomers are prepared and a forth will likely be destitute. The other half is iffy.