In a traditional phone that should not break at all you can simply solder and glue everything together so that things will simply not break; then you put it in

In a traditional phone that should not break at all you can simply solder and glue everything together so that things will simply not break; then you put it in a casing that is water/dust/shockproof and be done with it. I guess ensuring the same thing for a modular frame might be harder. Drop it and get a slightly bent internal frame so that the screen module can't connect anymore, etc.