So...this is pretty much known among anyone who's taken some IT classes. Multi-factor authentication is nothing new, been around since WW1. Not to mention, iris scanning has for quite awhile been considered the most secure form of identification.
The title of this should read "Fingerprint Scanning Really Only Widely Available and Relatively Functional Form Of Biometrics Authentication, Visa Report Finds"
Face recognition was launched way too soon (e.g. in Android), was slow and inaccurate, is easily duped, and has never been more than a novelty. Windows Hello/IR cameras can fix this - if they can ever get people to trust them to be fast and secure again.
I've never - ever - seen anything offering voice recognition as actual authentication (outside of bad spy movies). And what do you do if you get a cold?
"Behavioural biometrics" is useless as authentication in most cases - how do you log in to a PC/tablet/phone if the requirement for access is using it in the correct manner? That's like a key that unlocks your car based on your style of driving.
Given that iris scanning has been unavailable to the vast majority of people until ... the Note 7? Does anything before that have iris scanning?, the fact that people seem to trust that as much as they do is pretty interesting, though.