I mean, two in this instance, sure. But It is better than having your experience curated. And frankly, most people already use two different services for, say, blogging and video uploads, so it isn’t really a strange experience for anyone who might have posted something on YouTube and then linked ...

No, 2 for now. Anyway there's apps involved in culling, downloading the videos from different places, so there is always some extra effort needed to reach/archive info.