Well it's already been said but.... they can. The manufacturer is building them for an intended purpose. All this talk about digital outs etc is coming from those who want to change or extend it's intended usage. Nothing wrong with having those wants or even needs, but that is a different product. It's a portable digital music player. Not intended as part of a home rig or desk top set up. Judge it based on it's intended purpose, not on what you wish it would be.
Anyway, i just hope it sounds superb when used as a transportable player with IEMs... That's all.