[bwbmr]

You're thinking of backlit displays where a reflective front (between the user and the display) hurts screen visibility in bright light conditions. In this context, "super reflective" is referring to _behind_ the pixels of the display. There is no backlight, so the screen is lit up by ambient light. Increasing that reflectivity aids in contrast of the screen, since "white" pixels will be "whiter" (in this case they are actually grey but lighter grey if the screen is more reflective).

[NikolaNovak]

Awesome, thanks, that makes sense :). Essentially the reflective background increases the contrast between the light and dark pixel.