It looks like you might need to write some code, as the post says "for completed work proposed in this thread that furthers the goal of making improved transaction privacy a practical reality for Bitcoin users."
Just as well that it does not say "for completed code". Otherwise I would be going against the thing. In a knowledge economy, new knowledge (and new code) takes a lot of completed works. Anyway, the review is not complete yet so my claim might not be valid. And even if it is valid or invalid logically, the fund is ultimately at the discretion of two individuals. If they want to encourage or discourage this kind of research is up to them.