https://www.theregister.co.uk/2017/10/31/iphone_x_reviewers_struggle_to_admit_face_id_not_very_good/

EuphemismWatch Just it was hard for courtiers to tell the Emperor he wasn't wearing anything, the first iPhone X phondlers won't admit that Face ID will frustrate owners and make them work hard just to unlock the phone without a PIN. They don't want to spoil the fairytale.

Face ID is Apple's new and incredibly complex face recognition system: the answer to a question nobody was asking. Apple is so confident in Face ID that it has dispensed with the reliable Touch ID fingerprint sensor. When Face ID fails you need to type in the six-digit PIN password – a real pain. But is Face ID actually more convenient or reliable than fingerprints?