Sounds like high risk and high cost for something done relatively inexpensively today.
So were Tesla an SpaceX and they appear to be working.
Others have tried space based internet and failed, but if Elon Musk succeeds it would be great to have competition for Verizon, ATT, etc....
Except that huge numbers of rural people do not have access to adequate Internet. He's trying to make Internet access ubiquitous. If he can keep latency down and speeds up it will be huge.
The U.S. military is testing—so far looks good. DARPA wants a similar but smaller network as a strictly military asset. Forty-four thousand of StarLink units could carry defense network in a pinch. Would last a sufficient amount of time to bounce the rubble, even if space assets under attack.
Inmarsat vs Starlink Antennas
https://turbofuture.com/industrial/Inmarsat-vs-Starlink-Antennas