How important is this?
I think it is a great cliche buster. I have worked with many publishers who have measured the age of their online readers and compared them to the age of their print readers. Most expected a big swing for the younger readers to online. Most were surprised. About 2/3 reported no difference in age, a third showed a slightly younger audience for online.
The cliche aged print reader and the cliche online teen reader are both just that, cliches. When measurements are applied, there is a slight shift, but not a big one. Young and older readers both like magazines and online media.
On a call you can use this study to show how print is not such an old person's media after all.