Apple often aggressively cuts scope like this on first generation products and then brings back the features in the future updates. Maybe it’s to provide a reason to upgrade, maybe it’s just good project management but iPhone Duo 2 having “dual FaceID” sounds like something Apple would do.

Look at the low end iPhone’s slowing getting better screens, TouchID, and then FaceID.

They would have had to make an even larger section of the OLED translucent and traded internal space for an IR dot projector and a second camera beside the main one.

It would have made an even larger splotch of the screen look odd.

I'm surprised people like Face ID so much, it very often doesn't work for me. I frequently want to unlock a phone when I'm not looking at it or my face is not visible. Having Touch ID is a feature for me.

Phone’s already expensive enough and unless they have inner and outer faceid then they need touchid anyway