> Most useful async blocks are big enough that the overhead for the error cases disappears.

Is it really though?

In my experience many Rust applications/libraries can be quite heavy on the indirection. One of the points from the article is that contrary to sync Rust, in async Rust each indirection has a runtime cost. Example from the article:

    async fn bar(blah: SomeType) -> OtherType {
       foo(blah).await
    }