It’s definitely suspicious that there are no munitions remnants available for analysis. You would think there would be something. If there is anything, independent investigators need to be given access. Otherwise, the perception of impropriety will color peoples’ analyses.
But the idea this has been “concluded” doesn’t seem correct either.
As stated in this article, Al Jazeera, Channel 4, and Forensic Architecture reached conclusions that the air explosion shows the rocket was intercepted and destroyed, not misfired, and there is no causal link between the air explosion and ground explosion at the hospital.
The AP analysis argued against this, but did in fact note this was a possibility. I believe the CNN and others use the same arguments and resources as preliminary OSINT analyses.
Now, GeoConfirmed and other OSINT accounts (Oliver Alexander) are backtracking from their early hypotheses and concluding the Al Jazeera claim is in fact the likely scenario, arguing that the intercepted explosion is too far away from the hospital to be connected. They still think a rocket is the “likely” cause, however.
I wonder if we will ever know what happened for sure, but there is definitely more to this story.