Yea but you can type jw. in google and jw.org is the first site listed. (could that be considered an easter egg?)
Can you find anything on that site in the genral results via google? You can search directly by using site:jw.org in your search, and If I copy some text from a watchtower article and search, it does find the article on the site. So jw.org appears to be indexed.
But I have never seen a random result linking to anything on the jw site. I think it is likely because most of the people using that site just go there and search rather than using a search engine to find stuff.