No, they're technically theme parks. :)
And yes, DisneyQuest is part of Downtown Disney, but so is the movie theatre. And Cirque du Soliel. And Pleasure Island. And McDonald's. But all those locations are still what they are - just located at Downtown Disney.
Disney once advertised DisneyQuest as "an indoor theme park." I think they stopped advertising it as such, but perhaps they still do.
"The Spectacle has, indeed, an emotional attraction of its own, but, of all the parts, it is the least artistic, and connected least with the art of poetry. For the power of Tragedy, we may be sure, is felt even apart from representation and actors. Besides, the production of spectacular effects depends more on the art of the stage machinist than on that of the poet."
--Aristotle