In the trial, they talk about the differences between the usual distractions that ended in other children's car deaths, and this specific case.
I'd have to go back to remember what they all were---but the main thing I remember was that the lawyer who successfully got other parents acquitted of their hot car death cases, DID NOT testify as an expert in RH's trial, because his case did not fit in with the usual circumstances of an innocent mistake.
In the usual hot car death, a parent is tired or distracted, and has been on a long boring drive to work---and zones out, forgetting that they never went to the daycare drop-off. It is easy to do that when you have a regular daily routine which is done over and over, and it all runs together in your mind.
That was not the case on Cooper's last day. His Dad did things he did not usually do, [like tasking Cooper inside to eat breakfast] and there was only about 30 to 45 seconds between RH buckling Cooper into his car seat, and RH having to decide which way to turn out of the parking lot.
How could he have 'zoned out' and forgotten his child was there within a minute's time? that does not fit into the examples shown in 'Fatal Distraction' documentary, IMO.