Does he really believe what he it saying? There's nothing to be discussed about the time it took to take Diana to the hospital. In summer, hospitals take turns for grave accidents like this one. This night it was la Pitié-Salpêtrière and the amount of time was justified by the very unstable condition she was in. Brain injury is likely if cardiac arrest is untreated for more than five minutes so had they not taken the time to restart her heart, she would have arrived to the hospital with irreversible brain damages.
Moreover, if the paramedics had chosen to head for a closer hospital, no one over there would have been prepared to operate right away. The time they would have taken to gather a whole surgical crew, Diana wouldn't have even made it to the operation table.
These people did there best to save lives. How pretentious of this man and his followers to doubt it.