In my experience, it's so much harder to write a SHORT story than a LONG one.
I'm not upset at all that they highlighted people who can only read in quick snatches of time. Alas, more and more that's the world we live in -- everyone is so busy and there's only so much time we have for ourselves. eReaders are a PERFECT way to keep reading in a busy world, what with being so portable, so easily available, and so easily synced with multiple readers/hard copies.