I work in the comms sector - personally, I'd love to break the monopoly and drag the US into entertaining more municipal fiber. That said, it simply doesn't cover all use cases (not saying we shouldn't do it - just saying you still need both).
Fiber economics simply won't make sense everywhere, even terrestrial FWA is limited. Not to mention the defense applications, maritime, air, and ultra-long-haul that LEO satellites can offer.