Yes, I want to set my phone so that it only unlocks with a passcode if my FaceID is successful as well.
Another way to look at it is I would unlock it with a passcode (which I am quite happy doing) but it would only unlock if it was me that was actually trying to unlock it 🙂
OR,
An option where FaceID can be set as a continuous check could be useful. So if the phone is unlocked but someone snatches it, it locks. Although this would depend on whether people use their phone when not looking at it. So maybe telephone calls could continue, watching videos, or taking photos too - and it would need to be 'smart' enough to determine when continuous faceID might be needed - such as when changing settings, downloading data to a new computer, etc.