I don't know if I'd fully agree with 'scrapping outlines altogether' as I find sprites of this size sometimes need some outlining in places to make them stand out more and detailing of small sprites is one of the few things I find really interesting about pixel art and why I quite enjoy doing 16x16 sprites (my main game project uses a lot of them) more than any other size. I suppose it depends on the sprite in question and the artist's ability to use the space well.
You're right of course and it was a poor choice of words from my point, Lineart would've been a better term to use perhaps . Clearly outlines can still be useful in seperating things, even my edit still has outlines to a degree. What I meant was that sticking to lineart (especially inside the sprite) can clutter it.

Also nice edit!
