You don't seem to be all that up to date on present practice and theory in cryonics. Take some time to read up on the publications, such as by groups like 21st Century Medicine:

http://www.21cmpublications.com/

Or for a simpler starting point, the FAQs for scientists at Alcor:

http://alcor.org/sciencefaq.htm

You might also look at ongoing results from the Brain Preservation Technology Prize:

http://www.fightaging.org/archives/2012/03/an-update-from-co...

Evidence-Based Cryonics has a lot of as-unbiased-as-you're-going-to-get stuff on the perfusion and ischemia issues associated with vitrification of tissue, as well as explorations of other commonly voiced objections. Just wade through the archives:

http://www.evidencebasedcryonics.org/

Also, since we seem to be arguing from authority here, you might look at this, noting that a number of the signatories are quite well known biologists:

http://www.evidencebasedcryonics.org/scientists-open-letter-...