Whilst true, there’s a swathe of modern tooling that will aide in marshalling data for IPC. Would you not agree that if protobuf, json or yaml were used, it’d be far less likely for this bug have slipped in?
In isolation, for any one particular bug, yes, but if you start applying this logic to everything, even problems as simple as reading some bytes from a file, you end up with a heao of dependencies for the most mundane things. We've tried that, it's bad.