I have no status in science, so your last phrase is just silly. Scientists who are noted sceptics may want to criticise cryonics, and, of course, several have. But the effect I describe is something I saw someone who'd been specifically asked to comment as a scientist invoking, per the link which you should be able to read (rather than relying entirely on theoretical counterarguments, as you have); and I am, of course, noting it as one factor, not as the complete explanation you seem to have read it as.