The fund is specifically for *scripts* not stories, because once the script is commissioned, then the writer is paid either way. You don't have to pay a writer a script fee for an outline if it's never been approved to script in the first place. Paying for an option to use a story is much much cheaper than the full script payment.
["Let That Be Your Last Battlefield" was developed from a junked first season script. By coincidence I happened to have the information for that episode up on my screen.]