The free version will do everything the hobbyist version can do, but without the
ability to export assets [...] needed for game use – however, the user will be able
to export (watermarked) animated gifs showing off their artwork.
Artists have to do that anyway. :) This way, after they draw a few angles, software can automate the rest.
For unusual lighting (e.g. uplit), even an excellent artist would have to give it more attention. Similar to drawing a character from an unusual perspective. At any rate, drawing several unusual lighting angles will exercise one's talents more than using the same standard one.
It's literally looking at it in a new light.
Why not have the artist enter height directly, instead of shading from several different angles? It seems like less work (because there's less information to input); though possibly doesn't mesh as well with how 2D artists work... whereas shading is part of the tradition.
There's something I'm not getting here (that might lead to a better way of doing it, or not).