And you're right, there are very few weaknesses.
One of the startup approaches to the Google problem is to join forces with them instead of competing with them. Provide a page that wraps google search, but adds additional searchable items into the searchbar (search emails, todo lists, events, facebook, google all through one searchbar).
If you use satisfaction as the test, you may be letting the present state of things influence your thinking too much. E.g. I bet a lot of people were satisfied with pre-Google search engines, and just took their limitations for granted.
Part of the idea of 'disruptive technologies' is that they aren't incremental improvements that the current leaders will just copy, but big changes that get ignored by the current leaders.
There are lots of things they despise as inconsequential: stupid consumerish stuff like celebrity gossip, cool design, things that aren't technically demanding, etc...
The celebrity gossip industry is huge as anyone living in LA or who has bought a Star/People/Enquirer can attest. I think that might fall under the category of news, however.
I think that there might be a strength in ranking sites that have great design as opposed to crappy design. All things being equal, I'd rather read an article on a well designed page rather than on a page whose design is non-existent.