No, you see, using the service in a way not intended by the provider would be, for example, setting up your laptop as an ftp server from the airplane. This is different since it's pretty obvious you are circumventing measures put in place to force you to pay for access.
The real take-away from the article is that by allowing access to _any_ Google service, access to the entire Internet is indirectly granted. This knowledge has applications well beyond "stealing" Internet on air planes.