It's a feature provided by Intuit?  Why would you trust it?

I think the "analysis" is fashioned after something in Turbo Tax to give consumers a feel for how they compare to the "average"

I have glanced at it, but give it no real credence. All of my clients are special and none of them are average. 

Here is a sample Analysis - on the right are links to various IRS pubs and stats.

I think most come from https://www.irs.gov/statistics