Very strange! Mine was not quite as happy a story, but here in Silicon Valley (1mi from Facebook) I got a local ISP announcing fiber, and the very next week AT&T was running their own lines. This was back in 2019, and it felt like "everyone" had fiber before we did. 2 years later I guess it feels like old hat. And the local ISP has not yet run the fiber they promised. But one fast ISP is better than zero!
Good luck with your deployment. I'm still so happy about it.
Your incumbent killed the local ISP's project. Fibre customers generally won't change ISPs in the first 2-3 years of having service, so being undercut by the incumbent makes it worthless to continue with the cost of construction when you'll only get a handful of customers. I know because the incumbent has done exactly the same thing to me. A project that planned on having 140 customers can't be supported by 5.
Good luck with your deployment. I'm still so happy about it.