A couple of thoughts.
First, from the book, “A Doctor At Calvary,” by Pierre Barbet, he describes double bleeds at that hands, which he said were from the crucified man lifting himself up on the cross in order to breath and then dropping down after he took a breath. The double nailing of the hands in the article could be actually as Dr Barbet described ? Seems more probable than the OP article assessment.
Also, the article talks about pre-drilled holes, which was consistent with the Delourous Passion of Our Lord Jesus Christ, but not with historical accounts of Roman crucifixions. There would not have been a need for pre-drilled holes to crucify a man. Square nails can be driven into wood, no problem.
The following is my thinking.
Jesus crucifixion was not a usual Roman crucifixion.
The high priest Caiaphas, heard the stories about Jesus’ miracles and the prediction of his rising from the dead. In the Delorous Passion, Caiaphas had a special cross made for Jesus to guarantee nothing would go wrong. This cross had pre-drilled holes for the hands, so that they could bend the nails on the back of the cross beam, as they did in the Passion. This was done to prevent Jesus from falling off the cross, which sometimes happened in crucifixions, but if this happened with Jesus, the people would attribute to a miraculous sign that he was the Messiah.
Also, in the Delorous Passion, after they nailed Jesus right hand, they discovered that his left hand wasn’t long enough to reach the pre-drilled hole. If you recall the movie, they tied a rope around his left hand and pulled until it did reach, then they nailed it. This could be the cause of the dislocated shoulder ?
Ironically, when they filmed the movie the Passion, which is from the book, “The Delorous Passion of Our Lord Jesus Christ,” actor Jim Caviezel, suffered from a dislocated shoulder, after he fell with the cross. The article says this was the cause of the dislocated should of the man on the Shroud.
We’ll never know for sure until we meet Jesus in the life to come, but it’s interesting and mysterious.
Jim