Is Britax Bullsh*ting Us Sometimes??

Sooo I recently visited Britax in Israel, Not really so impressive, it was a huge warehouse but then again it was not an "official Britax office".
I've developed lots of questions and interests in Britax including the new "Safe Cell Technology" and the whole Safety you can see, I mean I always thought Britax was the safest car seat company around and this brings me to my general car seat inquiry; the basic need of a car seat is to be buckled up, so why are there so many features and other add-on safety features? What does it matter if a parent purchases a Britax carseat or a Graco carseat?

"Safe cell Technology"