Instant booking but no reviews appear?

I just had an “instant booking” but when I clicked on guest’s picture/profile there were no reviews showing, whereas previous instant bookings have always shown reviews. Is Airbnb hiding reviews from hosts, or could something have changed to where they no longer need reviews in order to instant book?
I checked my settings and saw that the reviews requirement was still checked.

I believe there is a quirk where perhaps they have a positive review pending. During the 14 day post period.