As far as I can tell, the thesis of this article amounts to ‘cryonics is a weird idea, but what's even more weird is believing in the future.’ If you put aside the overt scorn, it's actually a fairly interesting article, and surprisingly upbeat at that.
That scorn seems earned. Little progress has been made on raising the dead in 50 years. I mean, CPR has gotten better for sure. But that's just for people who are mostly dead. Not going to work on people who are all-the-way-dead. Anyone claiming high chances of resurrection in some sci-fi future are just blathing.
Based on the article it sounds like these bodies are being "preserved" in an absolutely destroyed state. They've kept the outside pretty, but they've pulverized their insides during the freezing process. Even if cryogenics works one day, the chance that these people can be revived seems extremely remote. The chance that the "store the body and not just the head" idea helps seems even more remote given that the organs, blood veseels, etc are destroyed.
They didn't discuss it (presumably verifiable information is hard to come by), but if the rest of the body is that destroyed, it seems unlikely that the brain is doing much better..