What matters to Disney is that Agents of SHIELD continues serving three roles -- the anchor, the glue, and the advertising machine for the Marvel Cinematic Universe.
It needs to glue together the universe between Marvel film releases, just as Marvel comic books frequently reference and cross over with each other. Most importantly, it's important for Disney investors to realize that Agents of SHIELD is really just a weekly 43-minute commercial for its upcoming feature films.
While DC seems to be signaling a significant move into true digital-first original content, it's now the relatively quiet Marvel that's making the initial move.