Bingo! {re: problem}
The 2 biggest cell carriers have other motives as well. VZ{W} is the franchised (i.e. Must Carry) carrier in multiple states. They want to abandon all their copper plant. In places where FIOS is deployed, they will force you to abandon POTS for {my term} FOPS.
But they also do not want to spend more money on FIOS deployment. Plus, it's not metered per bit.
So, fire up the 5G hype machine. Claim it's a floor wax AND a dessert topping. Every self-driving car will need it. Coerce everyone to abandon CTTH & FTTH because Magic 5G is here.
For that Magic, however, you need a site/node within hundreds not thousands of feet; each fed by fiber. Hmmm.
(Plus, what IS 5G? Is there an international 5G standard on the books yet?)