Jupp, totally makes sense. Despite I wouldn´t use it, I´m still wondering why they didn´t add it . I know that they tried hard to reduce buttons, ports (or let´s say: holes in the chassis) as much as they could (that´s even the reason why there´s a capacitive touch on/off switch instead of a "haptic" button), but I/Os are no joke...
I've head something about there not being enough space to add SPDIF, but I don't know if it's true...