Football has evolved away from Rugby; in the early 20th century there wasn't much equipment (leather helmets), alot more running & there were less stoppages; more similar to Rugby than now.
The Canadian version of football is a little more fluid than the American version, has less stoppages & less commercials. A little more emphasis on kicking, holding on to the Rugby influence using a wider ball closer to a Rugby ball that's easier to kick. Field's wider too. The American college version's also a little less static.
That drop-kick by the Patriots last season was a throwback to Rugby, was right out of the Canadian Football League where it's a little more common. That's where Flutie came up with it.