It'd certainly need more thought put into it than just showing the camera view from the entertainment system. Either just one camera on the tail pointed forwards, so you have one single camera that can show the whole plane, or two cameras in the front, one pointed at each wing. Two cameras is worse than one, but they are less likely to be affected by smoke or blood splatters or whatever. Maybe give each pilot one of the camera feeds. And you'd have to fit a dedicated screen for the video feed so pilots don't need to switch through screens in an emergency.

It'd take lots of testing and engineering. But especially in cases where you have multiple warnings going off I imagine that a quick view at an exterior camera can often give you a clearer/faster indication of the situation

You know how the tail camera works on the new planes? Something like that, which can be far away from the wings, but get the full picture. Am I saying it's the solution for everything? No. But after you go through the memory committed items during an emergency, you can take a look outside and be like "ah, I see better what the problem is".

If we don't try to see how it goes, we won't know if it is a good idea or not.