It doesn't mean you are getting the actual details when replicated. Those that have been ridden by hags claim it is far different than the average sleep paralysis from say running a marathon. Because in one they feel legs, arms, private parts, etc on them. While the other is just being stuck and frightened.
You are also dealing with the invisible, and how is a scientist going to measure something invisible that may have a consciousness that can chose to be measured or not? That's what a ghost is right? Consciousness without a body. Imagine if you were a ghost, and how easy it is for you to move around while people think you are in a certain spot and end up measuring nothing. How do you measure being touched? How do you measure hearing voices? Currently we can only measure what everyone else can see and hear but not the individual experience. If you can't then it is easy to chalk it up as "in your head." Science can be dismissive. Doesn't make it right.
How would science prove or disprove consciousness outside the body exist? They can't. Don't get me wrong you can measure protons, neutrons, and anything that has a pattern or belongs to a system. But does consciousness have a pattern? If so, do you know what you will do three days from now. Will you get up at the exact time? Feel the exact way? Eat the exact things?
I'm just saying science is a good beginning, but there are things that aren't accounted for. So the argument should be based on reasoning, supplemented by science.