SpaceX called it a “rapid disassembly” LOL. Talk about lipstick on porcines. IOW, it fell apart during the uncontrolled flipping. This was merely a launch test to see if, in Elon’s words, 1. It could launch; it did. 2. it would melt the launchpad on launch. It didn’t.
Lockheed had a launch of a private company rocket that was supposed to gradually turn at altitude and then separate. A fire on board caused the controls to be lost in the turn and the rocket did multiple flips. Likely the SpaceX rocket was attempting the same manuever. In the case of the Lockheed rocket, it finally separated but by this time the guidance was fouled and we had to issue a successful destruct command.