Well, it might offer some cool data, but it also shows me that whatever Google does, they don’t adhere to the robots standard. Check this:
Well, yes, these pages do have duplicate title tags. But they have something else as well:
<meta name="robots" content="noindex,follow,noodp" />
Perhaps, Google, instead of working on these nice webmaster tools, you should start honoring simple stuff like a meta name=”robots” first.