>He only said that he didn't want it to work with older versions, and that it was not a lot of work - i.e. it still took some amount of work - to make it not work with older versions
He doesn't say that at all. Really. It's not even remotely in the article. He talks about dropping support for Python 2.6. This isn't an action involving work! It means you no longer care if it doesn't work in Python 2.6.