Google's processes, however, is hands down the worst thing to exist for the scale they operate at, and it's not even close.
But BCL is still the worst language I've ever used.
In 2015, the SRE org started project "Prod 2020", with the goal of unifying the SRE stacks and modernizing the web tools. It was quite successful.
If by "web tooling" you mean the tools for producing public-facing HTML services, those were used by a surprisingly small percentage of developers.
> But BCL is still the worst language I've ever used.
I'm an SRE and I think it's quite likely the best infra language I've ever seen.
The GCL designers made several mistakes in its design, but the worse was the lack of a versioning that would make language evolution easier, as well as interoperability between different versions. GCL2 solved some issues, mainly cleaning up the interpreter. Still, BCL is IMNSHO by far the best infra language there is.