Lol negative, critical is more like it. And because you don't treat your truck like that doesnt mean others don't use them for rugged work or that accidents don't happen. If you've never had something slam around in your bed then you don't use it, I have a nice big dent from a highlift that broke free of its mount and there was linex, with this current bed it seems it would have torn right through.
Here's a challenge for you then - find a real-world example of a new F150 where someone has punched a hole in their bed. I've looked and I can't find one. It's been two+ years and there are definitely people out there using their trucks, even stupid people.
Point being that we all know that aluminum has a lower shear strength than steel. That's no surprise and of course Ford knew it when they designed the new truck. But Ford did real-world tests to design and prove the strength of the bed so that it would hold up, and it looks like they did a good job of that.
What GM is doing is to create artificial situations dropping items of particular shape and weight from a specific height they know exceed the strength of aluminum yet not steel - i.e., very heavy, very pointy objects where the force is concentrated at a single point. 5% heavier and that toolbox might have punctured the steel. 5% lighter, and maybe it wouldn't have punctured the aluminum. A different shape and it might have dented the steel but not the aluminum.
I'll take real world data over gimmicks any day.