You wonder about that, too, huh? They seem to be more effective at studying us than we are at studying them. I'm not sure whether we're the scientists or the lab rats. Asimov, I think, wrote "any sufficiently advanced technology will be indistinguishable from magic." I don't think it is true but I can't eliminate the possibility the "woo" is a result of tech beyond our understanding. All we have to base dismissal on is our arrogance.
MIB