The claim why these aren't adopted is that they aren't high enough quality. Why not include both a standard and undersceen front-facing camera and get the best of both worlds? Could use the under-screen camera for video chat and the standard one for everything else. Or even use some AI algorithm to merge the data from the standard camera with the under-screen one to increase quality.
The other problem is that having an under-display camera doesn't stop everyone else's eyes from pointing in the wrong direction, so even if you prioritize eye contact you'd also have to convince all your friends to, as well.
