That’s roughly where the first stage was to land. Could be the 2nd stage didn’t light.
I didn’t see any control surfaces (fins) on the 3rd stage. Since it is very unlikely that they have developed a gimbaled (able to aim) solid fuel nozzle, the third stage was likely liquid fuel.
That would be a step backwards from the last launch and indicates this was a hurried launch.
That’s about right and if it’s true that the roman candle reached a height of 120 KM before blowing then second and third stage fins wouldn’t mean anything anyway-—no air. Even the first stage fins look a little “early Hitler “to me-—I’m guessing they were just stacking engines, pointing and shooting, and hoping for a “reat rictory “.