"The author also completely misses the business case: putting a single gateway through which Google can index makes sense for huge content generators."
That's called a domain name. www.lifehacker.com is a single gateway to all of lifehacker's blog posts. Then you use the path part of the URL to specify which post or collection of posts you want.
Twitter hasn't leveraged anything. The tweet URLs without the hash-bangs were more accessible to Google.
You want tight-control as to which user-agents can see which set of tweets - that's what the Controller is for on the server.
That's called a domain name. www.lifehacker.com is a single gateway to all of lifehacker's blog posts. Then you use the path part of the URL to specify which post or collection of posts you want.
Twitter hasn't leveraged anything. The tweet URLs without the hash-bangs were more accessible to Google.
You want tight-control as to which user-agents can see which set of tweets - that's what the Controller is for on the server.