I didn’t miss crap. The cars have a mechanical release on the inside. If the driver was conscious, he could pull the switch which doesn’t need power and would unlock the doors. The OP’s comment and link were referencing the outside of the doors since the Model S has retractable handles that are flush with the door when they’re locked so there’s no handle to grab.
The only exception is the Model X since it has the full-wing doors. Those have a release that is only accessible if you pull off the speaker grill so you’d need to know about that ahead of time.