I think the point is it shows systemic bias, which may be very difficult to "debug".
It is important to apply ethics when developing technology, as rationality alone is not sufficient.
It is important to apply ethics when developing technology, as rationality alone is not sufficient.
It's not the tool we need to debug; it's us.
[0] Where, by "these tools", I mean machine learning writ large.
EDIT: I highly doubt your comment's parent was suggesting we had to be irrational in order to be ethical. Rather, I believe they meant we should be rational and ethical. Wouldn't you agree?