You don't say. SpaceX used to have "technical" launch streams with just launch status updates, but even they no longer do that :-/
Though that wasn't a SpaceX launch.
<https://en.wikipedia.org/wiki/Space_Shuttle_Challenger_disas...>
The launch broadcast narration continued for several seconds following the vehicle explosion reporting either telemetry or programmed flight path information before breaking script with the infamous announcement "There's obviously been a major malfunction". Various reports I've seen are that the previous commentary was based on telemetry rather than watching video.