I would have been satisfied if the plane had stayed a founders-only perk, even though I don't have enough to afford that tier myself right now. Releasing it to the public after FF '18 is above and beyond. I can see where some people might not want to bother supporting at that tier if they can get the plans for free by waiting a while. As for me, that kind of dedication to the "all plans for free" principle of the company just makes me want to donate more.