Yes, we are talking about the science. Thing is, EEs tend to forget that there's more than one discipline.We're talking about the science of cables. None of that stuff matters in a double blind A/B/X test. We already know that there are plenty of people who buy into the snake oil and hype of high end cables and other useless tweaks and no amount of scientific data will change their minds.
Perception has more to do with what a scope says, as has been established ad infinitum. To ignore it makes your scope of knowledge and experience seem smaller than it probably really is.