This reasonable analysis alleviates any initial concerns that Face ID is only a half-baked solution. Without using Face ID, it’s hard to know if it’s really going to be as fast and natural as Touch ID (or more so!) but I don’t think poor accuracy in detecting the owner’s face is going to be a factor in that. You can’t compare Apple’s Face ID to any previous company’s attempt, though that’s not stopping people who should know better from doing so.