Right, and that's what Dropbox Paper was probably originally an attempt at working toward, from the opposite direction — "We have Google Drive, now we just need Google Docs."

It should be obvious that "a whole collaborative office suite" is not the kind of thing a regular company can build as an extension play... but somehow some manager inside Dropbox convinced them that direction was possible. At least for a while. Seems they've gradually come to their senses.