Agreed on all counts: Rust is a tool and you don't have to agree with the tool designers. It's just bizarre to ignore precisely the aspect of the tool that singles it out, the reason it was created to begin with, the one thing this tool is very opinionated about.
You can also write all your Haskell programs with all functions with type IO. You can use a hammer to paint portraits.
You can also write all your Haskell programs with all functions with type IO. You can use a hammer to paint portraits.
Just expect eyebrows to be raised.