No, Bazel just fails to satisfy the very real need of building on less powerful machines because of its technological choice, a need served by other tools competing with it, and therefore is not really a truly general, one size fit all, solution.

The fact that you personally deem the needs of others illegitimate doesn't preclude them from actually existing.

The topic is whether FOSS developers should use Bazel, not whether Bazel is good for Google.

For many it is Bazel that is inferior due to development environment constraints.

And "outdated" is a questionable term: if it satisfies their needs, why upgrade?

Maybe Google should build better tools.