Yes. Minor oversight on our part. The $20 dollar donation level was always intended to include a copy of the game. Since someone has already made a pledge at that level, it can't be edited. So, I've added a "version 2" of the $20 dollar pledge to include a copy of the game. Rest assured, anyone who donates $20 dollars or more can choose to receive a copy of the final build of Errant Heart.
Similarly, the $50 dollar donation level has been changed to include early access to our release candidate version of the game. Since there already were donations at that level, a "version 2" $50 dollar level was added. However, rest assured that anyone who donates $50 or more will gain early access to the release candidate version of Errant Heart.