Commentary on that was made at the time.

Linux is a pretty small codebase compared to most proprietary codebases in large companies to be fair though.

Yeah, this – it's easy to forget that infrastructure code (Linux, libc, openssl, ...) really is the tip of the iceberg. Industrial codebases are often at least an order of magnitude bigger; really, that shouldn't surprise us: there are so many problems to be solved, it should be unsurprising that the specific outweighs the general.