The list is of people who underwent a pre-employment biometric background check. So, roughly, anybody who works for a bank, is a public school teacher, acquires a security clearance, or is in the military. The level of "real patriotism" on the list is going to roughly correspond with the "real patriotism" of those groups of people.

I don't understand why there's so much fascination with the idea that this is some protester-busting tool. The article merely posits the hypothetical scenario that some people could be punished by their employer, because their employer might get a rap back and they wouldn't be able to tell it was First Amendment activity as opposed to some actual serious crime, because the FBI and local law enforcement is bad at data entry. Somehow people read that and think that the point of the whole system is "corporate fascism stopping the patriotic protesting democracy" when none of the employers actually care about that. Or in other words, an emergent problem in the system that might occur is being assumed to be the central planned feature of it.