I believe the desired effect was to present a whole bunch of different types of people that get dinged by HR people after a resume made it through the filtering

I believe the desired effect was to present a whole bunch of different types of people that get dinged by HR people after a resume made it through the filtering software. Anecdote here instead of data, but I know someone who took off 10 years from their resume including military service because they received no calls with that resume; presumably being too old for the jobs they wanted. With the 10 years gone, they received calls non-stop. As for the point of the article being "Hire everyone", I took it to be, "Take a look at everyone that's initially qualified." Now, granted, if someone doesn't have the background, then sure, toss it. But if you see that someone has X years of Technology Y which is what you're looking for, but they're named Jamal and they're 50 years old, why not take a look at them? They've at least met your requirements, and some older people work well with younger people and vice versa.