Video fake
My professional view of the video is that it is a fake.
1/ the black smoke trail and the aircraft werenot shot at the same time and so have been composited.
The composite is then played on a TV and recorded on a cellphone with some eggagerated wobble.
The frequency of the wobble is not characteristic of footage taken with a long lens of a subject at least 7 miles away.
2/ The deep smoke should exhibit the same tones as the underside of the fusalege, but it does not, it is far cleaner and a deep black without any atmospheric haze or lens distortion. Refer to the black on-screen logo top right as a reference, the black smoke is the same clean and deep black as the logo.
3/ Perspective of the smoke trail is also wrong.
It appears to be taken from a following aircraft and could be a doctored shot of a white contrail or even footage from a gun camera of an unrelated explosive event.
4/ Given the time of day (full sun) and subject to camera distance the initial flash is unlikely to be registered by the camera as a clean, well defined, pure white.
5/ where is the shot of the aircraft falling to earth?
Mickjoebill