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Fehler was a good experiment in Ok-wrapping but I think that removing Result and Option is a bit too much. This view is also reflected by withoutboats' article in The registers of Rust, where it is said:

I've written before about why I think "Ok" wrapping functions would be a very good addition to Rust, and even implemented them as well. The only way my view has evolved since then (and here I think I am now more in line with the Rust project) is that using a syntax like try fn that doesn’t change the return type, so you can specify Option or Result, is probably the right approach for Rust. But overall having a syntax that keeps the user fully inside the effect (which is what Ok-wrapping really means), rather than halfway, would be not only more convenient but also more consistent with asynchrony and iteration.

I'm not proposing changing the #[throws] macro but instead defining a new macro that does not change the return type. And maybe it should be called #[try], with the understanding that #[try] fn f() -> Result<i32> could eventually become try fn f() -> Result<i32> if Ok-wrapping ever became part of the Rust proper.