This is pretty hyperbolic. In the shuttle era, these contingencies were thought of and planned for. The amount of preparation NASA would do before shuttle launches was incredible, including flying medical and rescue teams to the chosen launch abort sites.
From https://en.wikipedia.org/wiki/Space_Shuttle_abort_modes#Tran...
"Preparations of TAL sites took four to five days and began one week before launch, with the majority of personnel from NASA, the Department of Defense and contractors arriving 48 hours before launch. Additionally, two C-130 aircraft from the space flight support office from the adjacent Patrick Space Force Base (then known as Patrick Air Force Base) would deliver eight crew members, nine pararescuers, two flight surgeons, a nurse and medical technician, and 2,500 pounds (1,100 kg) of medical equipment to Zaragoza, Istres, or both. One or more C-21S or C-12S aircraft would also be deployed to provide weather reconnaissance in the event of an abort with a TALCOM, or astronaut flight controller aboard for communications with the shuttle pilot and commander."