There's more than enough amazing stuff in the first two categories to retain wonder for the future. We don't need to pretend that one day frozen corpses will be brought back and able to walk on top of that.
The last thing we need are walking corpses, especially the bitey kind.
Also, Cryogenics isn't about freezing dead people and thawing them out dead to bring back to life. It's about freezing live people and thawing them out alive. If it every works (not like our fundamental understanding of what is "impossible" has ever changed in the past) there will be no corpses involved.
This will become especially clear if you read up on what they actually did to the girl's dead body.
When the summary mentioned a frozen brain, then a head going through customs, I kind of assumed the girl was dead before the procedure occurred.