@as365n4:
Quite simply because it is not required.
If a technical fault is suspected, sure enough the manufacturer of the aircraft will get notified and push out bulletins as deemed necessary.
In this case I´ve heard nothing about a suspected technial fault, all video points to pilot error.
So what should they publish? That 2 aircraft crashed?
Nothing new there.
Once the investigation is complete a thorough and well researched report will come out, detailing all factors contributing to the accident.
Faster is not always better.