The primary reason why all those Tesla cases lack those details, is that they're reported basically immediately when they happen, because all Teslas are connected to the mothership and report back when it happens.
The NHTSA page even explicitly points it out under the data limitations section, under "Incident Report Data May Be Incomplete or Unverified".
> This means that a reporting entity with access to vehicle telemetry may quickly become aware of an air bag deployment incident subject to the General Order, but it may not become aware of all circumstances related to the crash, such as surface conditions, whether all passengers were belted, or whether an injury occurred.
This is also the reason why Tesla are so overrepresented in the data. Almost no other automaker has connected cars, or are like the GM On-Star a subscription service that not everyone has.
All other reports have to come in manually though actual crash investigations, which can take time. Or not happen at all if nobody thinks those systems might have had been activated/relevant. For example, a car using driver assist technology getting t-boned by a manually driven car at an intersection will likely not raise any alarms about automated systems during crash investigations. But for Tesla they're reported, because they immediately know those cars were in a crash.
So in conclusion, as NHTSA has said, none of the data has been normalized, and lacks important contextual information to properly analyze it, and should thus not be used by itself to draw any conclusions.