Given that the late abort decision was suicide, could the Horizontal Stab have been trimmed to get it to rotate?
Flying with the controls locked would be friggin dangerous, but it might buy time and opportunity compared to the abort decision.
You are asking that question on here as a Monday morning quarterback and with lots of hindsight & thinking time. They had seconds to make a decision. The question you ask would take a superior pilot to action & answer. Take a look at the thread about a C140 engine failure on takeoff at 50' where the pilot waggled the wings to drip some fuel into the engine from supposedly empty tanks. I suspect, strongly, that some where deep in his subconscious memory an old sage had dropped that pearl of survival wisdom where it germinated and lay dormant just for that fateful day. In this case there was no such pearl.