"40-year-old error handling strategy: also yes." What's wrong with using time tested methods that work well? If you insist on wasting cycles with exception handling you have the option of abusing panic/recover.
Multiple return values make explicit error handling very easy. This is what we actually wanted when we got exceptions.
C did not set the programming world back at all. C brought high level programming languages into the mainstream and it succeeded largely because of it's limitations not despite them.
This is a bit of a stretch. Chemtrails are a baseless assumption. EM radiation has a measurable effect matter. Why not make valid points instead of insulting people?