It makes sense to me as well - but the fact does remain that aside from people commenting on how much sense it all makes, there's not been even the slightest whisper that they're actually going to do it.
There's not really such a thing as "too soon" when it comes to BST. They're not booking it as a "festival" in the way that Glastonbury or Latitude or wherever might, they'll happily have the same act turn up 2 days / 2 weeks running if it'd sell the tickets and no reason to think they wouldn't extend that over 2 or 3 years.