I'm puzzled why the author released one-time "snapshot" of the current development state instead of placing the code in a world-readable repository (errr...github?)
I think that placing it in github or something like it would suggest a continued involvement or a state of maintenance. This is a 'fire and forget' way of open sourcing something.
Takes 10 seconds and the effect is much the same, you get the source, what else could you ask for ? Nicer wrapping paper ?