tokio_fs crate

On this page, under the "When not to use Tokio" section, it says

Reading a lot of files. Although it seems like Tokio would be useful for projects that simply need to read a lot of files, Tokio provides no advantage here compared to an ordinary threadpool. This is because operating systems generally do not provide asynchronous file APIs.

Which make sense. However, what is the need for this tokio\_fs crate in that case?