Ah yeah, my phrasing was poor on that. 2.0 has yet to see a stable release, but they started warning about the default setting changing a while back.

Downvoter, please comment on what you think I did wrong here? You clearly have been here long enough to get downvoting privileges but I guess you failed to learn proper etiquette? Maybe they ought to consider raising the bar to something like 1000 points instead of 500?

You may want to leave it in. As another user mentioned, the official stable release is still 1.9. It does warn you that the default will change in 2.0, and prompts you to decide whether or not you want to keep "matching" as the default, but the version that most people will be working on won't have "simple" set as default yet.