Brian Wowk did not say this. He only said that it's not reversible with current technologies ("a dead end").
Brian Wowk is too smart of a person to make dogmatic statements about which technologies will allow revival and which do not.
As a matter of fact, Alcor (Mike Perry) just received $25,000 to investigate low cost alternatives to cryonics such as chemical fixation:
http://www.alcornews.org/weblog/2008/01/administrative_report.html
Let's see what happens with that money
