Yes, the Drive document was left as a draft (or put on hold) and newly introduced tags don't appear there, even if they're used on the main site (not every series that should has self-published for instance). Self-published, to avoid overlapping with webcomic, is left only for printing releases, all doujinshi would fall under this category but I think it's only used and meant for series. In order words, webcomics (and series that in the past were published like this) that manage to get printed without the meddling of a publisher are meant to be tagged with self-published.
Like Roler said, it's the old User Created tag.