I conceed that what I wrote is a bit of a simplification, however I stand behind what I say. The photos that you show (bear in mind I am not experienced in looking at car crash photos etc.) look to me as if the car grazed the barrier. This will not deploy the air bag, as it is the deceleraion that is important (hence the different speeds required for a wall compared to another car) and I think the sensors really cover about 35 deg either side of dead ahead. So you hit a barrier at 65 but took some time to stop
, hence no deployment, as opposed to a slower speed and stopping virtually instantly
.
Front Air bags also tend not to inflate in roll over crashes.
When I worked in A+E I saw hundreds of car occupants who had been in accidents and only a handfull had experienced their airbag deploy. It made me far more concerned when I heard that as they were likely to have had more energy disapated through their body.