And what is that going to prove?
Schumacher had his accident. He was atteneded to within fifteen minutes, and flown to the local hospital. As soon as the nature and extent of his injuries became clear, he was forwarded to Grenoble for specialist care. Once in Grenoble, he was taken into surgery as soon as he was stable enough for it.
A timeline isn't going to show us anything that we do not already know. Could the attending paramedics have saved two hours by taking him directly to Grenoble from the snowfields? Yes, they probably could have. But if your question is why they did not, the answer is that they had no reason to based on the available information at the time. When those paramedics first arrived on-scene, they would have established that Schumacher fell whilst travelling at low speed, and hit his head while wearing a helmet. He was lucid, but agitated and confused. Based on that information available to them, they could reasonably deduce that he was suffering a simple concussion, and would have treated accordingly. If he passed out, it would be due to shock or blood loss, which are common side effects of head injuries. It was only when they got to the local hospital that they would have been able to test his neurological functions, at which point they would have received the first clues that something else was wrong. At that point, they forwarded him on to Grenoble for a CT scan, which revealed the bleed into the brain cavity. By that point, he would have been unconscious or comatose, but the CT scan would have been needed to confirm the diagnosis and identify the source of the bleed. Cutting into a skull is not to be taken lightly, and relieving the pressure is only so effective; the neurosurgeon needs to know what they are looking for and where they are looking for it. No neurosurgeon is going to operate without first confirming the diagnosis. If Schumacher's condition was so serious that the surgeons had to open his skull without a CT scan, he probably would not have survived.
In retrospect, yes, it would have made sense to airlift Schumacher directly to the hospital in Grenoble. However, there is a procedure that needs to be followed, and decisions can only be made based on the information available at any given moment.