Although that's actually a complete mischaracterization of "Unnatural Selection"...
Problem being, it just isn't "Unnatural Selection". The transporter is used to restore crew to a prior state in "The Enemy Within", "Lonely Among Us", "Unnatural Selection", "Rascals" and "Tuvix".
I'm pretty sure I'm missing one or two as well.
The magic of the transporter is actually more pervasive then magic blood. Yet, somehow, people were able to keep their suspension of disbelief in check.
As far as the magic blood goes, McCoy says he's going to put Kirk in a cryotube to preserve brain function. Under that scenario, I'm not sure that Kirk is clinically dead.