This pilot apparently had some behavioral issues. Taking a plane this size beyond it’s limits was one of those issues. Wikipedia had the following:
The 1994 Fairchild Air Force Base B-52 crash occurred at Fairchild Air Force Base, Washington, United States, on June 24, 1994, when the pilot of a Boeing B-52 Stratofortress, Arthur “Bud” Holland, flew the aircraft beyond its operational limits and lost control. The aircraft stalled, fell to the ground and exploded, killing Holland and the other three United States Air Force (USAF) crew members on board. The crash was captured on film and was shown repeatedly on news broadcasts throughout the world.
The subsequent investigation concluded that the chain of events leading to the crash was primarily attributable to three factors: Holland’s personality and behavior, USAF leaders’ delayed or inadequate reactions to earlier incidents involving Holland, and the sequence of events during the aircraft’s final flight. The crash is now used in military and civilian aviation environments as a case study in teaching crew resource management. It is also often used by the US armed forces during aviation safety training as an example of the importance of compliance with safety regulations and correcting the behavior of anyone who violates safety procedures.