A Christian response to the above article:
The three points: In order to survive the events of crucifixion:
1: Jesus must have been taken to be dead by the Roman soldiers when he was taken down from the cross.
2: Jesus would have needed to have been resuscitated back to life.
3: Someone must have seen Jesus alive after the events of the crucifixion.
The third point is – perhaps wisely – not addressed.
1: Is an incorrect diagnosis of death medically possible?
Short answer – yes, of course it is. That does not mean, however, that the Roman soldiers were wrong. Statistically, you'd have to say when someone is showing all the signs of being dead, they are dead.
The argument goes on:
All of the above cases go to show that even in the most experienced hands, a mistaken diagnosis of death can be made in patients who are still alive. Hence, it is quite plausible that the Roman soldiers made a mistake in declaring Jesus (as) dead after the events of the crucifixion. Even if the Roman guards were professionals in diagnosing death, as we can see above, even professionals can be mistaken.
Yet all the above cases provide a very small and rare comparison to the numbers declared dead, who are dead. What the argument fails to do if offer any evidence that those present at the crucifixion mistakenly believed Jesus to be dead. It's a common logical fallacy.
Also, factor this:
"... The soldiers therefore came; and they broke the legs of the first, and of the other that was crucified with him. But after they were come to Jesus, when they saw that he was already dead, they did not break his legs. But one of the soldiers with a spear opened his side, and immediately there came out blood and water." (John 19:32-34)
So they thought Him dead, so why the stab? To make sure. If indeed the Roman solider was experienced, he'd know where to stab, and how.
The rest of the article offers clear and objective evidence of cases of mistaken diagnoses, and seeming spontaneous recovery, albeit a rare and exceptional circumstance. What it fails to do, however, is offer any objective reason for why we should assume such was the case with Jesus.