Nope, not buying it.
Go to a site powered by meteor, for example their own site:
https://www.meteor.com
Disable javascript in the browser, and this is the kind of nifty looking webpages you get:
<body>
</body>
Good luck getting any search-ratings with site full of that stuff!
How is this “the best of the two worlds.”?
At least Meteor, seems to be the exact opposite of whats described in the article.
Its like flash-only sites for the new millennium.