My understanding was that the big ISPs we're making if unprofitable for Google to continue with the fiber rollout. There were stalling tactics and general bullshittery around giving Google access to poles, conduits, etc.

https://arstechnica.com/tech-policy/2013/12/why-att-says-it-...

http://www.tennessean.com/story/money/2017/11/22/judge-rules...

And so on and so forth.