TheBackwardPipeOperatorCanAlsoHelpWithGrouping - Add De-Emphasis Note?

[JustinGrote]

Don Syme, etc. have mentioned the backward pipe is now considered bad practice (like backticks in Powershell), so should this koan have a note that this pattern is discouraged in favor of pipelining and that typically you would do this instead?

    [<Koan>]
    let TheBackwardPipeOperatorCanAlsoHelpWithGrouping() =
        let add x y =
            x + y

        let double x =
            x * 2

        let result =
            add 5 8
            |> double

        AssertEquality result 26