jokes apart, the "market" is pretty crowded for yet another sport to jump out of nowhere. I mean, I saw that clip where a DIII college team keeps passing the ball for a while after scoring a touchdown — to a rugby fan like me, it looked just goofy.
That crazy lateral play you're referring to
a) never happens with actually good players
b) was an incredible fluke, which is why you saw it
c) wasn't the result of incredible skill on the part of the offense, but incredible lack of skill on the part of the defense.
Out of curiosity, how many people watched that Dolphins-Giants game in London?