I missed this thread first time around. I'm a big fan of Alasdair Roberts and remember being startled when I heard the recorded version of Little Sir Hugh.

I haven't heard him play it live, but I can see why you might choose not to preface it with an apologetic introduction. That would bracket it off as a historical anomaly and rob it of its power by making it more comfortable. Presenting it without introduction perhaps forces the audience to think a bit more. It's a brave thing to do though.