We need a thin Ti bumper CASE!
The new anodized finish isn't a cheap below industry standard finish. Its just not a great finish choice for sharp edges. Honestly that's the only real design flaw of the phone, the sharp edges of the camera plateau. You can't paint, coat, or anodize anything that can protect that. I don't even thing the design looks good either. Why not have it just smooth out into the phone unibody? The 16 Pro camera bump and back, which is very similar to the new AIR, is a much much better back design in general.
Personally I would prefer a thicker edge, or stronger aluminum alloy with a polished or satin aluminum color where there isn't a finish to wear off. What about a Ti alloy band, with a separation gasket from the aluminum unibody, that has shock absorbing qualities? One can dream.