Why? The plane look fine. Level and all parts attached.
Wikipedia:
14 September 2003: Captain Chris Stricklin, flying Thunderbird No. 6 (F-16), crashed during an airshow at Mountain Home AFB, Idaho.[19] Immediately after takeoff, Stricklin attempted a “Split S” maneuver (which he had successfully performed over 200 times) based on an incorrect mean-sea-level elevation of the airfield, 1100 feet (335 m) higher than the home base at Nellis.
Climbing to only 1670 feet (509 m) above ground level instead of 2500 feet (762 m), Stricklin had insufficient altitude to complete the maneuver, but guided the F-16C aircraft down the runway away from the spectators and ejected less than one second before impact. He survived with only minor injuries and no one on the ground was injured, but the $20 million aircraft was completely destroyed.
you See the water vapor condensing above the wings? That is from very low pressure... that aircraft has a good attitude but a high vertical velocity... towards the dirt.
IIRC, that aircraft was bottoming out of a dive. Unfortunately, the bottom of the dive was a further 20 or 30 feet below ground level.