The 2nd Editions actually do away with the traditional rulesheet entirely in favor of the QuickStart cards and the online tutorial.
That decision was driven by consistent feedback I received, particularly from more casual gamers but also from some more experienced BGG-savvy players - even though the printed rulesheet was only a single double-sided page, players were finding the sheets intimidating. As a result, people were setting the game aside, not playing it, and not going online to view the interactive tutorials which offered a much easier and more visual means of learning the game.
Realizing that even mass market standards like Monopoly and UNO aren't played accurately by the majority of players, I made the tough decision to do away with traditional written rules. Players can now learn the game online and then use the QuickStart cards as a convenient reference during play. Since making that change, the once-common comment about the games seeming "intimidating" has disappeared entirely (I was shocked by how immediate and effective the change was, actually).
Further updates to the interactive tutorials are planned and the upcoming 3rd Edition will introduce a few tweaks and clarifications to the QuickStart cards as well (including a correction to Famous First Downs QuickStart Card #2, where I mistakenly swapped references to the Offense and Defense when discussing how Momentum is earned). At that point, the tutorial and cards should all be aligned. I'll release updated printable QuickStart cards here on BGG at that point as well.
I come from a software background and naturally approach these card games from a software-as-a-service standpoint, continually tweaking, fixing and improving things whenever I see an opportunity to make the player experience better. However, I'm realizing that that approach does pose some challenges for physical products such as these so I may choose to rethink that and allow development to come to rest once I release the 3rd Edition.
Sorry, that was a long-winded and complex answer to a very short and simple question.