Well, at least users have to add them to the dropbox list manually. The cool thing of Google Docs, for me, was that it didn't allow many options, to avoid the mismash of informal, unchecked styles that happens in Word.

With this Office-ification of Docs I see a potential disruption. Maybe a LaTeX-like collaborative WYSIWYG editor? That is, one that has only four or five possible document types, and is very opinionated and consistent in how the document is styled. Like TeXmacs, but online and simpler.