The twins weren’t in the front seat, because it was deliberate. Putting them in the back seat gave him cover.
You’re proving my point. Remember this started being about airbags.
You are not supposed to put a child’s car seat in the front because if the airbag goes off, the child can be badly injured/killed from the impact, even in the car seat. Now in some vehicles you can turn off the airbag, but not all.
I contend that’s one of the reasons we keep hearing about this happening. Yes, some of this is deliberate, but not all.
And in many vehicles, you can not see the car seats from the rear view mirror without readjusting back and forth every time. My daughter’s Lexus for example.
Couple that with dark tinted rear windows and harried parents, unfortunately it’s going to happen occasionally.