It's almost like they'd be better off making the glass less flexible so it would just crack when people bend it too much, and then they'd know they did the wron

It's almost like they'd be better off making the glass less flexible so it would just crack when people bend it too much, and then they'd know they did the wrong thing. The fact that the phone can bend like this without breaking might mean they don't realise that they've subjected it to an unreasonable amount of force.