I have always been in favour of human beings as opposed to algorithms, but when I speak of blind experimentation, maybe that is something that is to be considered. The way I see it is this: Why not try it and see what the results are? Why not try it and then compare? If we use an algorithm, will it produce different results?
At the end of the day, we're talking about human beings, so the preference is for human beings to assess the situations and circumstances of other human beings.