Maybe, but I feel like an article I’ve read many, many times is “we hired one or more Xooglers for our startup and this turned out to be a catastrophe because they insisted on trying to bring blaze/bazel with them and it nearly destroyed the company.” It’s always bazel specifically in these articles, never any of the other internal Google stuff like Spanner.
I mean, bazel is great and I would use it when building a codebase from scratch, but the win from switching from one build system to another is, at best, some efficiency, and you need a lot of aggregate efficiency gains to pay for effort.
Wait please post the articles where they brought Spanner over; those sound like fun reads