All current & previous designs of Starship have no means of aerodynamic control when at an AoA of zero degrees, because the axis of rotation of all flaps is coplanar. In the image below, if the ship ends up facing the oncoming air directly nose-first, no flap configuration could impart any torque on the ship. It's unclear to me whether cold-gas thruster system could recover the vehicle from such a flight mode. See the image of Starship from head-on for detail:
This question resolves YES when the ship enters such a flight regime and is unable to recover, and NO when a future revision of Starship removes the control surface root coplanarity (or when the program is cancelled/all future launches are called off, etc).
1,000@ProjectVictory During powered flight, yeah. Raptors have gimbal, but RVacs don't, and I'm unsure if ignition could be done on short notice to escape the deadzone (or if the torque their gimbal would impart on the ship would even be enough)