This suggests there's alternative services available anyway, so why take the risk on Google at all?
I know people who have Google Fiber, and love it - super fast Internet at reasonable prices. If it got turned off, they would just go with someone else. What exactly do you think the downside is? As a municipality, sure, as the article explains. But as an end consumer, what's the problem?
Where I am, if you relinquish your DSL, you might not be able to get it back, because the telco only has a limited number of ports on their equipment and between new construction and equipment wear and tear, you might not have a port available to serve you. Some places, servicable copper pairs are in short supply too --- my parents have to get switched to a new pair every year or two.
If many people switched away, but then had to switch back, it'd be a mess, and I wouldn't expect to be able to get the same quality dual pair service that I have now.
For another, Google has a ridiculous reputation for customer service. Even saying that is being generous, because most Google services just don't have customer service, at all.
I keep hearing "just go with someone else if they shut down" - so there clearly are alternative services available, presumably ones for whom providing a fibre service to customers is actually a core part of their business and revenue, rather than a side-gig of questionable long-term value to the corporation.
"For another, Google has a ridiculous reputation for customer service." Uhh, yeah, because Comcast and AT&T are famous for their stellar customer service.
Give it a rest, man. I get annoyed as much as anyone with Google's "shiny object" penchants, but this isn't one of those cases.
Have you tried Comcast customer service? It's shit. I've had better support with paid Google services (both Pixel and Workspace) than Comcast.
Google has bad customer service reputation only for its free products, which is not unexpected. If someone values good support, then a different paid service is an obvious alternative over a free Google service.
Isn't that for people to decide for themselves? Few reasons I can think of: preference, trust, integrations, better features, don't want to support Comcast, etc.