Some people have an inverse problem - it is difficult to position a monitor so that it doesn't reflect a window. This technology sounds perfect for that.
EPD displays aren't magically paper-like; in fact they are far from looking like actual paper. There's either plastic or glass in front, and they give the same glare as any other matte or glossy display. If anything, active lighting (either backlight or frontlight) helps mitigate glares, shadows, and other external lighting non-uniformities.