It's a very nice idea, I would love to see more creativity in the web, but I don't think I agree with the implementation or what I see as the user base. Every blog page is not just a template, it's someone's vision of the world. It's an identity and a brand that the blogger tries to create and extend to its users. Using this new style the blogger would completely lose any form of identity and become more of a sparkling instagram knockoff than a medium to share rich content to its user base.