Google recommends avoiding exceptions for a completely different reason though: Google has a massive C++ codebase that was built when C++'s particular implementation of exceptions had huge technical issues that made dangerous to use dangerous to use. Now that Google has a bunch of code that was written as if exceptions didn't exist, they have made the decision that it will be easier for Google if they just continue to pretend that exceptions don't exist, rather than having to rework (and possibly break) a bunch of already-working code.
