AFAIK since they went to 'color protection' with the color film (last generation) you didn't have to immediately shield it when it came out of the camera and the new color formula is the same. I shot a pack of the older stuff and never did that. But you are supposed to let it develop in the dark for the 30 minutes, in a drawer or a pocket or whatever.
Per the Impossible blog the newly released black and white still needs to be shielded:
But you still have to shield it from light when itís ejected from the camera, right?
The light sensitivity of all of our film materials is created by classical silver halide emulsions. When the picture comes out of the camera, the siver halide crystals in the negative are still light sensitive, despite some protection by what we call an opacification dye in the paste.