.. if you are someone that even ventures into areas that lack proper cell coverage. I don't think most people do.

If you live west of the great plains, you will always hit dead zones if you ever leave the city, even on the major interstates you will hit dead zones. This is an incredibly nice feature to have for tens (hundreds?) of millions of people in the just the US, let alone other countries. (this may hold true in the east as well, I don't live there)

Extrapolating your personal experience to all use cases is generally a bad idea.

This is me when I go to a state forest 20 minutes away, and about 2.5hrs drive from Manhattan. Anywhere with even a little elevation has abundant cell dead zones.

You can drive from Apple's headquarters to zero bars of cell service in 10 minutes.