There is, the Google own teams cannot be bothered to use what outsiders are forced to use when targeting Android.

I think it's more complex than that, bazel (and its predecessor blaze) were created to make monorepo development at google scale work. They use bazel/blaze not because it works better or more easily for Android, they use it because their entire engineering culture depends on an enormous monorepo of sharing code and rapid changes across the company codebase. There are some great papers they've written about bazel that go into these issues and more.