I watched it.
If anything, that streak is headed up, and is more likely debris coming up from the explosion.
Beyond that....the suggestion of a missile strike is not at all credible.
The wind makes it appear to go up. It actually appears instantly.
By the angle which it flew straight upward may indicate that this flying item was on top of an explosion, probably the primary detonation. Possibly the metal access cover/grate that was part of the sidewalk, which left the square hole in the sidewalk after the event. Explosion was from under the sidewalk, beneath the cover or grate?